As a species, we need:
3.) nictitating membranes
(Edit: note that Daggett has 2 of these 4 things.)
If spider silk is so strong, why does it break when I blunder into a web?
In a related note, Holly decided to tell "Spooooky stories of the fuuuuuuuture!" and she told this:
"In the fuuuuuture, there will be 5000 channels!" So I said "Cool!" and then she said "But there will be nothing to waaaaaatch!!" I'm all :
confused Jammin' with :
Angry Beavers - Muscular Beaver 2