Rare animals are interesting, and we should keep them around just to marvel at them.
We often do not fully understand why some of these rare animals are so rare and what lead to their existence in the first place. Only by spending much time studying them and allowing them to live out their lives uninterrupted do we have a hope of learning more about them
Biodiversity is essential for the health of all life on Earth and should be both preserved and protected. In areas with rare species, such as blue lobsters, special care should be taken to consider the welfare of the species habitat and measures taken to preserve the integrity of the animals.
There are only so many types of rare and endangered species on Earth. Humans should do everything in their power to protect these creatures for the future. Protecting animals for the future is important since, given the current rate of extinction, these animals might not be around if we do nothing to protect them.
Each species, whether plant, animal, or something else has its own chemical makeup. Losing a species that contained some highly beneficial chemical could hinder technological progress severely. A single type of creature could hold the key to reversing Alzheimer's in its blood and get needlessly wiped out due to human recklessness.
Being able to study strange animals also helps us to understand things that we would like to know. Wouldn't it be fascinating to observe a dinosaur? Some of the questions we have about them are impossible to answer because they're all extinct or evolved into birds. Knowing why some lobsters are blue could teach us something about the animal kingdom in general. If they went extinct, we could make speculations, but we couldn't study them anymore.
Rare animals are vitally imporant to the ecosystem of the world. Because they are rare, they are in a bigger danger of becoming extinct and causing a major change in the ecosystem. We do not know what potential disasters await us if these animals are allowed to die off and become extinct.