Replying to Evolution

So last semester we covered an article that considered how/why evolution may have given us the moral values that people have today, and it got me thinking. What other cool things has evolution given us?
Some ideas:
- Babies are cute / we find the way babies look to be attractive because if we didnt they would get abandoned.
- Fingernails? Ive heard theyre to protect nerve endings but if we still have them in 200 years itll definitely be so we can open up bottles of ketchup.

Lets hear some other good ones.

/notascientist