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Evolution on your body

distraff
Posts: 1,004
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6/24/2016 4:09:34 PM
Posted: 5 months ago
Hello everyone, I want to talk about the traces of evolution on our bodies.

The first is wisdom teeth. Wisdom teeth are on the side of the jaw and can create problems for other teeth as they grow, from eroding or removing other teeth, and increased infections. They exist because the human jaw is too small for the number of teeth we have. This happens because as our ancestors evolved the jaw got smaller and smaller to make more room for the brain. The next step is for wisdom teeth to disappear and in fact 35% of humans are born without wisdom teeth and many more are born with some of them missing.

The appendix is used by animals to digest cellulose rich plants like leaves. Since we don't eat them anymore it really doesn't have much of a function. It does have some helpful bacteria for aiding in digestion but removing the appendix does not have any observable negative effect. The appendix often gets infected and has to be removed and is more of a liability today.

We humans have a tiny tail that is made of only a few bones that is not observable. Actually fetuses have large tails like animal fetuses but most of it is removed during development. The human tail bone often gets infected and has to be removed and has no observable downside to being missing. Some people are born without it and do just fine.

The male nipple is another organ that doesn't do anything since the purpose of the nipple is to feed milk and males don't produce milk. It exists because fetuses start out female so the nipple starts to develop. When some fetuses turn male the nipple stops developing.

Humans have a third eyelid which is very small and only can be seen at the end of the eye. Birds and reptiles have third eyelids and use it to lubricate the eye and clear it of debris.

The Palmaris longus muscle is along the forearm and 15% of the population don't have it. In studies those without it don't have any less grip strength or any disability from missing it. In fact in cosmetic surgery it is often removed to reconstruct other body parts. It is useful in other animals that do a lot of scrambling around with their arms.

There are some very small muscles that allow us to slightly move our ears. There is no reason we need this ability. However animals have far more developed muscles to move their ears to the direction of sound. In fact in studies whenever sound is played the body tries to move the ear nearest toward the sound although it fails.

Goosebumps are often aroused in times of excitement, anger, or cold. Goosebumps in animals ruffles their feather or fur to appear larger in times of attack and warm up when it is cold. However since we don't have fur they are useless.

Babies have this instinct to grasp with their hands. This is only slightly useful since baby hands are so weak. However ape babies grasp the fur of their mothers in order to hold on as their mothers walk through trees. Human babies also have the same instinct to grasp with their feet as well because ape feet used to be more like hands. This ability is completely useless for humans.
Shukr
Posts: 24
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6/24/2016 4:59:09 PM
Posted: 5 months ago
At 6/24/2016 4:09:34 PM, distraff wrote:
Hello everyone, I want to talk about the traces of evolution on our bodies.

The first is wisdom teeth. Wisdom teeth are on the side of the jaw and can create problems for other teeth as they grow, from eroding or removing other teeth, and increased infections. They exist because the human jaw is too small for the number of teeth we have. This happens because as our ancestors evolved the jaw got smaller and smaller to make more room for the brain.

You are saying - brain got bigger, jaw got smaller simultaneously. This is not possible.

Like jaws knew they had to get smaller to accomodate larger brain size. How can this be caused by random mutations? The skull size could increase overall, why that did not happen. Someone's gonna cry - hey, it just had to happen, evolution has no purpose.

But jaws getting exactly that smaller to give room to exactly that big size of brain, given that size of jaws and brain varies from person to person, how could that work?

Also, why were those ancestors with bigger brain size favoured by natural selection? What was the advantage in survival?

Why did the growth of brain stopped and reached kind of equilibirium?

How can mutations result in bigger, better brain?

I will address rest of your points one by one. For now that's enough.

The next step is for wisdom teeth to disappear and in fact 35% of humans are born without wisdom teeth and many more are born with some of them missing.

We will see if the wisdom teeth disappear. Has the population of people with no wisdom teeth increased? Show me the data.

The appendix is used by animals to digest cellulose rich plants like leaves. Since we don't eat them anymore it really doesn't have much of a function. It does have some helpful bacteria for aiding in digestion but removing the appendix does not have any observable negative effect. The appendix often gets infected and has to be removed and is more of a liability today.

We humans have a tiny tail that is made of only a few bones that is not observable. Actually fetuses have large tails like animal fetuses but most of it is removed during development. The human tail bone often gets infected and has to be removed and has no observable downside to being missing. Some people are born without it and do just fine.

The male nipple is another organ that doesn't do anything since the purpose of the nipple is to feed milk and males don't produce milk. It exists because fetuses start out female so the nipple starts to develop. When some fetuses turn male the nipple stops developing.

Humans have a third eyelid which is very small and only can be seen at the end of the eye. Birds and reptiles have third eyelids and use it to lubricate the eye and clear it of debris.

The Palmaris longus muscle is along the forearm and 15% of the population don't have it. In studies those without it don't have any less grip strength or any disability from missing it. In fact in cosmetic surgery it is often removed to reconstruct other body parts. It is useful in other animals that do a lot of scrambling around with their arms.

There are some very small muscles that allow us to slightly move our ears. There is no reason we need this ability. However animals have far more developed muscles to move their ears to the direction of sound. In fact in studies whenever sound is played the body tries to move the ear nearest toward the sound although it fails.

Goosebumps are often aroused in times of excitement, anger, or cold. Goosebumps in animals ruffles their feather or fur to appear larger in times of attack and warm up when it is cold. However since we don't have fur they are useless.

Babies have this instinct to grasp with their hands. This is only slightly useful since baby hands are so weak. However ape babies grasp the fur of their mothers in order to hold on as their mothers walk through trees. Human babies also have the same instinct to grasp with their feet as well because ape feet used to be more like hands. This ability is completely useless for humans.
(:'j
distraff
Posts: 1,004
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6/24/2016 5:52:32 PM
Posted: 5 months ago
At 6/24/2016 4:59:09 PM, Shukr wrote:
At 6/24/2016 4:09:34 PM, distraff wrote:
Hello everyone, I want to talk about the traces of evolution on our bodies.

The first is wisdom teeth. Wisdom teeth are on the side of the jaw and can create problems for other teeth as they grow, from eroding or removing other teeth, and increased infections. They exist because the human jaw is too small for the number of teeth we have. This happens because as our ancestors evolved the jaw got smaller and smaller to make more room for the brain.

You are saying - brain got bigger, jaw got smaller simultaneously. This is not possible.

Why not?

Like jaws knew they had to get smaller to accomodate larger brain size. How can this be caused by random mutations?

How can mutations result in bigger, better brain?

Because the brain is encoded by DNA and mutations change DNA.

The skull size could increase overall, why that did not happen.

Having a larger head has no advantage. In fact whales have larger heads than humans and are still not that smart.

Someone's gonna cry - hey, it just had to happen, evolution has no purpose.

It purpose is survival and passing on your genes to the next generation.

But jaws getting exactly that smaller to give room to exactly that big size of brain, given that size of jaws and brain varies from person to person, how could that work?

So body part size change is impossible since there is variation? Then how do we see the decreased size in chihuahuas?

Also, why were those ancestors with bigger brain size favoured by natural selection? What was the advantage in survival?

Being able to make tools.

I will address rest of your points one by one. For now that's enough.

The next step is for wisdom teeth to disappear and in fact 35% of humans are born without wisdom teeth and many more are born with some of them missing.

We will see if the wisdom teeth disappear. Has the population of people with no wisdom teeth increased? Show me the data.

Why did the growth of brain stopped and reached kind of equilibirium?

Because humans got so good at surviving that natural selection has far less impact.

The appendix is used by animals to digest cellulose rich plants like leaves. Since we don't eat them anymore it really doesn't have much of a function. It does have some helpful bacteria for aiding in digestion but removing the appendix does not have any observable negative effect. The appendix often gets infected and has to be removed and is more of a liability today.

We humans have a tiny tail that is made of only a few bones that is not observable. Actually fetuses have large tails like animal fetuses but most of it is removed during development. The human tail bone often gets infected and has to be removed and has no observable downside to being missing. Some people are born without it and do just fine.

The male nipple is another organ that doesn't do anything since the purpose of the nipple is to feed milk and males don't produce milk. It exists because fetuses start out female so the nipple starts to develop. When some fetuses turn male the nipple stops developing.

Humans have a third eyelid which is very small and only can be seen at the end of the eye. Birds and reptiles have third eyelids and use it to lubricate the eye and clear it of debris.

The Palmaris longus muscle is along the forearm and 15% of the population don't have it. In studies those without it don't have any less grip strength or any disability from missing it. In fact in cosmetic surgery it is often removed to reconstruct other body parts. It is useful in other animals that do a lot of scrambling around with their arms.

There are some very small muscles that allow us to slightly move our ears. There is no reason we need this ability. However animals have far more developed muscles to move their ears to the direction of sound. In fact in studies whenever sound is played the body tries to move the ear nearest toward the sound although it fails.

Goosebumps are often aroused in times of excitement, anger, or cold. Goosebumps in animals ruffles their feather or fur to appear larger in times of attack and warm up when it is cold. However since we don't have fur they are useless.

Babies have this instinct to grasp with their hands. This is only slightly useful since baby hands are so weak. However ape babies grasp the fur of their mothers in order to hold on as their mothers walk through trees. Human babies also have the same instinct to grasp with their feet as well because ape feet used to be more like hands. This ability is completely useless for humans.
dee-em
Posts: 6,447
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6/25/2016 2:38:41 AM
Posted: 5 months ago
At 6/24/2016 4:59:09 PM, Shukr wrote:

The skull size could increase overall, why that did not happen?

Why did the growth of brain stopped and reached kind of equilibirium?

Because the baby's head would not be able to pass through the birth canal. It would require a simultaneous mutation in woman having a much greater pelvic opening.
Axonly
Posts: 1,802
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6/27/2016 12:19:37 PM
Posted: 5 months ago
At 6/25/2016 2:38:41 AM, dee-em wrote:
At 6/24/2016 4:59:09 PM, Shukr wrote:

The skull size could increase overall, why that did not happen?

Why did the growth of brain stopped and reached kind of equilibirium?

Because the baby's head would not be able to pass through the birth canal. It would require a simultaneous mutation in woman having a much greater pelvic opening.

I honestly can't tell if you people really don't understand basic biology and evolution, or are just trolling -_-
Meh!
dee-em
Posts: 6,447
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6/28/2016 1:17:46 AM
Posted: 5 months ago
At 6/27/2016 12:19:37 PM, Axonly wrote:
At 6/25/2016 2:38:41 AM, dee-em wrote:
At 6/24/2016 4:59:09 PM, Shukr wrote:

The skull size could increase overall, why that did not happen?

Why did the growth of brain stopped and reached kind of equilibirium?

Because the baby's head would not be able to pass through the birth canal. It would require a simultaneous mutation in woman having a much greater pelvic opening.

I honestly can't tell if you people really don't understand basic biology and evolution, or are just trolling -_-

I'm very serious. What did I say that makes you think I am trolling?

https://en.wikipedia.org...

The obstetrical dilemma refers to two opposing evolutionary pressures in the development of the human pelvis where the transition to walking upright, bipedal locomotion, decreased size of the bony birth-canal in hominids, conflicts with the need for a wider obstetrical pelvic area in order to accommodate the trend in later hominids for fetuses with larger craniums .[1]
Riwaaz_Ras
Posts: 1,046
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6/30/2016 3:06:07 PM
Posted: 5 months ago
At 6/24/2016 5:52:32 PM, distraff wrote:
At 6/24/2016 4:59:09 PM, Shukr wrote:
At 6/24/2016 4:09:34 PM, distraff wrote:
Hello everyone, I want to talk about the traces of evolution on our bodies.

The first is wisdom teeth. Wisdom teeth are on the side of the jaw and can create problems for other teeth as they grow, from eroding or removing other teeth, and increased infections. They exist because the human jaw is too small for the number of teeth we have. This happens because as our ancestors evolved the jaw got smaller and smaller to make more room for the brain.

You are saying - brain got bigger, jaw got smaller simultaneously. This is not possible.

Why not?

Like jaws knew they had to get smaller to accomodate larger brain size. How can this be caused by random mutations?

How can mutations result in bigger, better brain?

Because the brain is encoded by DNA and mutations change DNA.

The skull size could increase overall, why that did not happen.

Having a larger head has no advantage. In fact whales have larger heads than humans and are still not that smart.

Then how could the larger head size in whales worked but not in humans?

Someone's gonna cry - hey, it just had to happen, evolution has no purpose.

It purpose is survival and passing on your genes to the next generation.

But jaws getting exactly that smaller to give room to exactly that big size of brain, given that size of jaws and brain varies from person to person, how could that work?

So body part size change is impossible since there is variation? Then how do we see the decreased size in chihuahuas?

Also, why were those ancestors with bigger brain size favoured by natural selection? What was the advantage in survival?

Being able to make tools.

Tools for what?

I will address rest of your points one by one. For now that's enough.

The next step is for wisdom teeth to disappear and in fact 35% of humans are born without wisdom teeth and many more are born with some of them missing.

We will see if the wisdom teeth disappear. Has the population of people with no wisdom teeth increased? Show me the data.

Why did the growth of brain stopped and reached kind of equilibirium?

Because humans got so good at surviving that natural selection has far less impact.

The appendix is used by animals to digest cellulose rich plants like leaves. Since we don't eat them anymore it really doesn't have much of a function. It does have some helpful bacteria for aiding in digestion but removing the appendix does not have any observable negative effect. The appendix often gets infected and has to be removed and is more of a liability today.

We humans have a tiny tail that is made of only a few bones that is not observable. Actually fetuses have large tails like animal fetuses but most of it is removed during development. The human tail bone often gets infected and has to be removed and has no observable downside to being missing. Some people are born without it and do just fine.

The male nipple is another organ that doesn't do anything since the purpose of the nipple is to feed milk and males don't produce milk. It exists because fetuses start out female so the nipple starts to develop. When some fetuses turn male the nipple stops developing.

Humans have a third eyelid which is very small and only can be seen at the end of the eye. Birds and reptiles have third eyelids and use it to lubricate the eye and clear it of debris.

The Palmaris longus muscle is along the forearm and 15% of the population don't have it. In studies those without it don't have any less grip strength or any disability from missing it. In fact in cosmetic surgery it is often removed to reconstruct other body parts. It is useful in other animals that do a lot of scrambling around with their arms.

There are some very small muscles that allow us to slightly move our ears. There is no reason we need this ability. However animals have far more developed muscles to move their ears to the direction of sound. In fact in studies whenever sound is played the body tries to move the ear nearest toward the sound although it fails.

Goosebumps are often aroused in times of excitement, anger, or cold. Goosebumps in animals ruffles their feather or fur to appear larger in times of attack and warm up when it is cold. However since we don't have fur they are useless.

Babies have this instinct to grasp with their hands. This is only slightly useful since baby hands are so weak. However ape babies grasp the fur of their mothers in order to hold on as their mothers walk through trees. Human babies also have the same instinct to grasp with their feet as well because ape feet used to be more like hands. This ability is completely useless for humans.
(This is not a goodbye message. I may or may not come back after ten years.)
distraff
Posts: 1,004
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6/30/2016 5:43:58 PM
Posted: 5 months ago
At 6/30/2016 3:06:07 PM, Riwaaz_Ras wrote:
At 6/24/2016 5:52:32 PM, distraff wrote:
At 6/24/2016 4:59:09 PM, Shukr wrote:
At 6/24/2016 4:09:34 PM, distraff wrote:
Hello everyone, I want to talk about the traces of evolution on our bodies.

The first is wisdom teeth. Wisdom teeth are on the side of the jaw and can create problems for other teeth as they grow, from eroding or removing other teeth, and increased infections. They exist because the human jaw is too small for the number of teeth we have. This happens because as our ancestors evolved the jaw got smaller and smaller to make more room for the brain.

You are saying - brain got bigger, jaw got smaller simultaneously. This is not possible.

Why not?

Like jaws knew they had to get smaller to accomodate larger brain size. How can this be caused by random mutations?

How can mutations result in bigger, better brain?

Because the brain is encoded by DNA and mutations change DNA.

The skull size could increase overall, why that did not happen.

Having a larger head has no advantage. In fact whales have larger heads than humans and are still not that smart.

Then how could the larger head size in whales worked but not in humans?

Because whales are larger animals. Again, having a larger head does not make you smarter.

Someone's gonna cry - hey, it just had to happen, evolution has no purpose.

It purpose is survival and passing on your genes to the next generation.

But jaws getting exactly that smaller to give room to exactly that big size of brain, given that size of jaws and brain varies from person to person, how could that work?

So body part size change is impossible since there is variation? Then how do we see the decreased size in chihuahuas?

Also, why were those ancestors with bigger brain size favoured by natural selection? What was the advantage in survival?

Being able to make tools.

Tools for what?

Making fire, hunting, making clothing out of fur.

I will address rest of your points one by one. For now that's enough.

The next step is for wisdom teeth to disappear and in fact 35% of humans are born without wisdom teeth and many more are born with some of them missing.

We will see if the wisdom teeth disappear. Has the population of people with no wisdom teeth increased? Show me the data.

Why did the growth of brain stopped and reached kind of equilibirium?

Because humans got so good at surviving that natural selection has far less impact.

The appendix is used by animals to digest cellulose rich plants like leaves. Since we don't eat them anymore it really doesn't have much of a function. It does have some helpful bacteria for aiding in digestion but removing the appendix does not have any observable negative effect. The appendix often gets infected and has to be removed and is more of a liability today.

We humans have a tiny tail that is made of only a few bones that is not observable. Actually fetuses have large tails like animal fetuses but most of it is removed during development. The human tail bone often gets infected and has to be removed and has no observable downside to being missing. Some people are born without it and do just fine.

The male nipple is another organ that doesn't do anything since the purpose of the nipple is to feed milk and males don't produce milk. It exists because fetuses start out female so the nipple starts to develop. When some fetuses turn male the nipple stops developing.

Humans have a third eyelid which is very small and only can be seen at the end of the eye. Birds and reptiles have third eyelids and use it to lubricate the eye and clear it of debris.

The Palmaris longus muscle is along the forearm and 15% of the population don't have it. In studies those without it don't have any less grip strength or any disability from missing it. In fact in cosmetic surgery it is often removed to reconstruct other body parts. It is useful in other animals that do a lot of scrambling around with their arms.

There are some very small muscles that allow us to slightly move our ears. There is no reason we need this ability. However animals have far more developed muscles to move their ears to the direction of sound. In fact in studies whenever sound is played the body tries to move the ear nearest toward the sound although it fails.

Goosebumps are often aroused in times of excitement, anger, or cold. Goosebumps in animals ruffles their feather or fur to appear larger in times of attack and warm up when it is cold. However since we don't have fur they are useless.

Babies have this instinct to grasp with their hands. This is only slightly useful since baby hands are so weak. However ape babies grasp the fur of their mothers in order to hold on as their mothers walk through trees. Human babies also have the same instinct to grasp with their feet as well because ape feet used to be more like hands. This ability is completely useless for humans.
Riwaaz_Ras
Posts: 1,046
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7/1/2016 5:06:25 AM
Posted: 5 months ago
At 6/30/2016 5:43:58 PM, distraff wrote:
At 6/30/2016 3:06:07 PM, Riwaaz_Ras wrote:
At 6/24/2016 5:52:32 PM, distraff wrote:
At 6/24/2016 4:59:09 PM, Shukr wrote:
At 6/24/2016 4:09:34 PM, distraff wrote:
Hello everyone, I want to talk about the traces of evolution on our bodies.

The first is wisdom teeth. Wisdom teeth are on the side of the jaw and can create problems for other teeth as they grow, from eroding or removing other teeth, and increased infections. They exist because the human jaw is too small for the number of teeth we have. This happens because as our ancestors evolved the jaw got smaller and smaller to make more room for the brain.

You are saying - brain got bigger, jaw got smaller simultaneously. This is not possible.

Why not?

Like jaws knew they had to get smaller to accomodate larger brain size. How can this be caused by random mutations?

How can mutations result in bigger, better brain?

Because the brain is encoded by DNA and mutations change DNA.

The skull size could increase overall, why that did not happen.

Having a larger head has no advantage. In fact whales have larger heads than humans and are still not that smart.

Then how could the larger head size in whales worked but not in humans?

Because whales are larger animals. Again, having a larger head does not make you smarter.

Oh I see.

Someone's gonna cry - hey, it just had to happen, evolution has no purpose.

It purpose is survival and passing on your genes to the next generation.

But jaws getting exactly that smaller to give room to exactly that big size of brain, given that size of jaws and brain varies from person to person, how could that work?

So body part size change is impossible since there is variation? Then how do we see the decreased size in chihuahuas?

Also, why were those ancestors with bigger brain size favoured by natural selection? What was the advantage in survival?

Being able to make tools.

Tools for what?

Making fire, hunting, making clothing out of fur.

Oh I see.

I will address rest of your points one by one. For now that's enough.

The next step is for wisdom teeth to disappear and in fact 35% of humans are born without wisdom teeth and many more are born with some of them missing.

We will see if the wisdom teeth disappear. Has the population of people with no wisdom teeth increased? Show me the data.

Why did the growth of brain stopped and reached kind of equilibirium?

Because humans got so good at surviving that natural selection has far less impact.

The appendix is used by animals to digest cellulose rich plants like leaves. Since we don't eat them anymore it really doesn't have much of a function. It does have some helpful bacteria for aiding in digestion but removing the appendix does not have any observable negative effect. The appendix often gets infected and has to be removed and is more of a liability today.

We humans have a tiny tail that is made of only a few bones that is not observable. Actually fetuses have large tails like animal fetuses but most of it is removed during development. The human tail bone often gets infected and has to be removed and has no observable downside to being missing. Some people are born without it and do just fine.

The male nipple is another organ that doesn't do anything since the purpose of the nipple is to feed milk and males don't produce milk. It exists because fetuses start out female so the nipple starts to develop. When some fetuses turn male the nipple stops developing.

Humans have a third eyelid which is very small and only can be seen at the end of the eye. Birds and reptiles have third eyelids and use it to lubricate the eye and clear it of debris.

The Palmaris longus muscle is along the forearm and 15% of the population don't have it. In studies those without it don't have any less grip strength or any disability from missing it. In fact in cosmetic surgery it is often removed to reconstruct other body parts. It is useful in other animals that do a lot of scrambling around with their arms.

There are some very small muscles that allow us to slightly move our ears. There is no reason we need this ability. However animals have far more developed muscles to move their ears to the direction of sound. In fact in studies whenever sound is played the body tries to move the ear nearest toward the sound although it fails.

Goosebumps are often aroused in times of excitement, anger, or cold. Goosebumps in animals ruffles their feather or fur to appear larger in times of attack and warm up when it is cold. However since we don't have fur they are useless.

Babies have this instinct to grasp with their hands. This is only slightly useful since baby hands are so weak. However ape babies grasp the fur of their mothers in order to hold on as their mothers walk through trees. Human babies also have the same instinct to grasp with their feet as well because ape feet used to be more like hands. This ability is completely useless for humans.
(This is not a goodbye message. I may or may not come back after ten years.)