[LogicWings]

It's prey because it's tasty

Some cultures eat dogs, cats, snakes and anything else that moves. It is merely cultural bias.

[Henchster]

Thanks, you reminded me:

Gator - Tastes like chicken, chews like rubber.

Rattlesnake - Tastes like chicken, chews like rubber.

Eel - Tastes like fishy chicken, chews like rubber.

I'm sticking with my theory. {;^)