Here's a very partial list of words that are adjectives for different types of animals and birds:

corvine (crows), eagles (aquilline), robin (turdine - seriously), simian (ape), ursine (bear), buffalo (bubaline), bull (taurine), feline (cat), galline (chicken), bovine (cow), cancrine (crab), canine (dog), pulicine (flea), and [drumroll] pteropine (flying fox!).

Whoa - flying fox!! Foxes fly? As a matter of fact, yes, some very cute, insect-eating ones in Australia do.