The cow AI in most ways is similar to the bee. The cow will randomly walk around and try to find tall grass to eat. Once it finds the grass it will eat it and the tall grass will be gone. If there’s a lot of cows there will likely not be a lot of tall grass after a while.:)
In contrast the the bee a cow is never agressive. If you attack the cow it will try to run away from you. For now the AI is as simple as this. Next up? The worm.
-Chris