Cats also have them. You sometimes see them in the corner of their eye, or partially covering their eyes when they’ve just woken up or are sick or something. They are sort of a translucent milky white.

It’s because they evolved in desert conditions, from what I’ve read. They can see well enough through them but it protects against sand and stuff.

I learned about these from MiB.

This new season of Make Some Noise really started off with a bang

Damnit Dale!

Insane!