You know when it feels like you're being watched, but no one's there? Make that an animal. (Crocodile Icefish)
An attempt to decipher a child's drawing produces the tarsier.
Trying to make an animal with good hearing cycles through several awful goblins before making the owl.
Attempts to rearrange rib bone structure lead to turtles on defense and the Iberian ribbed newt on offense.
An attempt to provide courtship behaviors that make your heart throb produces the Long Tailed Manakin, the Staurois frog, and the hooded seal.