chinese bullfrog in market

amphibian animal anuran artificially asia batrachian biology bred bullfrog cheerful chinese cooking cuisine edible environment exotic eye food frog frogeater frogs funny green greenback grin hoplobatrachus horse kaloula kitchen luteum market markets metamorphosis nail natural nuphar rana reptile rugulosus semiaquatic southeast southeastasia species terraqueous thai thailand true water wet wetmarket wildlife