Could you provide references to the verses where the Bible makes these assertions, so they can be addressed more specifically?
Thanks.
And the coney, because he cheweth the cud, but divideth not the hoof; he [is] unclean unto you. [Lev 11:5]
Yet these may ye eat of every flying creeping thing that goeth upon [all] four, which have legs above their feet, to leap withal upon the earth; [Even] these of them ye may eat; the locust after his kind, and the bald locust after his kind, and the beetle after his kind, and the grasshopper after his kind. [Lev 11:21-22]
They're all from the same chapter of the same book.
Bats & birds:
http://www.carm.org/diff/Lev_11_19.htm
Note that the defender claims that the Bible ISN'T a scientific text. Hmm.
Rabbits & cud: Leviticus 11:6
Insects with 4 legs instead of 6: Leviticus 11:21-23.