The Instigator
Burncastle
Pro (for)
Winning
11 Points
The Contender
Mike-the-wise-guy
Con (against)
Losing
1 Points

The theory of Evolution is well supported by science

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Post Voting Period
The voting period for this debate has ended.
after 3 votes the winner is...
Burncastle
Voting Style: Open Point System: 7 Point
Started: 6/18/2014 Category: Science
Updated: 3 years ago Status: Post Voting Period
Viewed: 1,094 times Debate No: 56801
Debate Rounds (5)
Comments (0)
Votes (3)

 

Burncastle

Pro

First round is for acceptance, unless my opponent has arguments that he wants to present right away.

Good luck!
Mike-the-wise-guy

Con

I accept. The BOP is on you.
Debate Round No. 1
Burncastle

Pro

I will gladly take the BoP and demonstrate why evolution is the current best explanation for the diversity of life. Let's begin.


1) Evidence from deoxyribonucleic acid (DNA):

Since I am not a geneticist, this will be pretty basic (and pretty much a bunch of paraphrases from sources I will list below). I believe it will also help everyone understand it better. Let's start with an introduction to DNA.

Our DNA is what defines us. It uses four basic building blocks (named A, T, C and G) in order to code our entire body. Humans have approximately 25000 genes in their DNA, each of which controls a specific aspect of our body (eye color, diseases, height, etc.). We share about 99,9% of our DNA with each other, leaving our differences in the remaining 0,1%. (http://eveloce.scienceblog.com...)

A couple of years back, scientists started the Human Genome Project, with which they wanted to sequence all of our DNA (this has now been completed). With the sequence now well known, scientists began to sequence the DNA of other mammals such as lions, elephants and pigs and they realized that not only do they also have 25000 genes, but most of these genes are identical to ours. Many primates are extremely similar to us, genetically speaking (http://humanorigins.si.edu...) (http://en.wikipedia.org...)

Another impressive fact is the ability for human genes to be passed to other animals. Fruit flies, for example, can accept some human genes in order to create weird (though viable) mutations. While this may not be a direct proof of evolution, it is exactly what you would expect if every life form shared a common ancestor.

Since DNA is an extremely complicated subject, I will leave at that for now.

2) Evidence from the fossil record:

This is much easier to grasp then DNA so I will spend more time on it. Let's begin with the evolution of humans:

      • Australopithecus afarensis lived around 3 million years ago. It's anatomy suggests that it is ancestral to modern humans (http://humanorigins.si.edu...)

      • Homo ergaster (which is sometimes considered part of homo erectus) is the next species in our evolutionary chain. It lived less than 2 million years ago and shared many feature with us (http://australianmuseum.net.au...)

      • Homo heidelbergensis lived less than 1 million years ago and was very similar to homo erectus except for the fact that he had a larger brain (http://anthro.palomar.edu...)

      • Homo sapiens is virtually identical to us and therefore is considered part of the same species (basically, we are homo sapiens). They have been around for about 200 000 years (http://humanorigins.si.edu...)


Let's explore the evolution from sea to land:

This aspect of evolution is extremely important; not only does it contain one of the most convincing “transitional fossil”, but it also allowed us to make an accurate prediction. Given what we knew about evolution back in 2000, scientists began to search for the fossil of an animal, around 350 million years old, which would indicate the transition from sea to land. After many failed attempt, they finally found what they were looking for in 2004 (in Canada); Tiktaalik. This animal is a perfect transitional fossil; it retains many characteristics of fish AND has many features that are specific to tetrapods. (http://www.sciencedaily.com...)
(http://en.wikipedia.org...)
(https://www.youtube.com...)

If my opponent wishes, I can present the evolution of birds in the next round, or perhaps the evolution of cats and dogs, or maybe he would prefer the evolution of mammals. Take your pick.

Personally, the aspect of the fossil record that I find the most convincing (and the primary reason why I accept evolution as true) is the absence of currently living species in old layers; for example, we never found the fossil of a dog that was 100 million years nor have we ever found “rabbits in the Precambrian”. (http://en.wikipedia.org...) In other words, the fact that evolution is so easily falsifiable and yet has NOT been falsified is pretty convincing to me (although it obviously is not sufficient on its own to be considered scientific).


I await my opponent's answer!
Mike-the-wise-guy

Con

I am sorry, we will have to postpone this debate. I am busy for the rest of June. Sorry. The rest of the rounds are forfeited by me. If we debate this topic again, we will just copy and paste our arguments from this debate into a new debate.
Debate Round No. 2
Burncastle

Pro

I am sorry to hear this. I hope you will give me the opportunity to debate this topic with you again!
Mike-the-wise-guy

Con

Sorry about this inconvenience. Personally, I can't wait to address some of your arguments. But I can't for now. Good luck on your other debates! :)
Debate Round No. 3
Mike-the-wise-guy

Con

Mike-the-wise-guy forfeited this round.
Debate Round No. 4
Burncastle

Pro

Until next time.
Mike-the-wise-guy

Con

Mike-the-wise-guy forfeited this round.
Debate Round No. 5
No comments have been posted on this debate.
3 votes have been placed for this debate. Showing 1 through 3 records.
Vote Placed by Themba 3 years ago
Themba
BurncastleMike-the-wise-guyTied
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Total points awarded:31 
Reasons for voting decision: Concession.
Vote Placed by SGM_iz_SekC 3 years ago
SGM_iz_SekC
BurncastleMike-the-wise-guyTied
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Total points awarded:70 
Reasons for voting decision: Con lost
Vote Placed by lannan13 3 years ago
lannan13
BurncastleMike-the-wise-guyTied
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Total points awarded:10 
Reasons for voting decision: Forfeiture