Greatest scientific evidence for evolution?

[Rath]

Scoobes said:

Final-Fan said:

I don't know about this crazy third eyelid thing, but I'm pretty sure the actual purpose of goose bumps was to make our hair stand on end to keep us warm, like birds that fluff themselves up.  And I don't think we really have enough hair to make it effective anymore.  

There are other mammals that have a third-eyelid. If any of you have ever had a sick cat it becomes pretty apparent that they have an third-eyelid. I'm not sure of the purpose, other than perhaps an extra cleaning mechanism (they can't realy use there paw that well), or that the way cat's eyes are they need an extra layer to block light. These are just me guessing though.

It's to act as an eyelid while still being able to see I think - it's translucent.

In humans you can see the remains of the third eyelid if you look at the inner corner of one of your eyes.