>

So, evolution does not happen for the purpose of need. Pretend there is an orange species of animal, and a predator. Then a mutation just so happens to occur that makes an animal red (crazy small chance but still). So what may then happen is the red is better at camouflage than the orange so the predator has an easier time finding the orange and dwindling that population (natural selection). Now if they are lucky and the trait is passed on, that is how a species may evolve to be mostly red and a smaller population of orange. Now that's not always how it happens, there is adaptive radiation most common on islands because of the different SEPARATED environments that means 3 different species of one bird may come from the same ancestor however they may mutate like I mention previously and survival of the fittest take over causing animals that came make use of what they have the best will survive the best. That's why 3 different species on one bird may grow to have different shaped beaks depending on the environment.
Hope this clears things up for ya. I'm gonna try and explain it in less but its not a perfect understanding without background knowledge: evolution by natural selection can be defined as the individual didn't evolve but was either selected for or against, this changing the consistency of the population
This is a friendly reminder to read our rules.
Remember, /r/Showerthoughts is for showerthoughts, not "thoughts had in the shower!"
(For an explanation of what a "showerthought" is, please read this page.)
Rule-breaking posts may result in bans. >

I’ve seen animals look directly at the sun. I doubt we’d notice a rare case of sun damage in animals. >

Our eyes are also not as good as most animals I think >

better than most animals not as good as some >

This is a false. Our eyes evolve to the purpose of need. It's not a competition. However, only a human could be so arrogant to think otherwise.