What gifts does ephimetheus give to the animals?

To some he gives speed, strength, or claws and teeth. Some have great hearing or eyesight. He makes some able to fly away from trouble and other vulnerable ones burrow or can see in the night so they can avoid troubles. Some are given very thick hides to protect them from attack.

Basically, if it is a natural feature or advantage possessed by an animal, it was given by Epimethius.