Which Animal Has No Gallbladder?
Which Animal Has No Gallbladder? Several species of mammals (including horses, deer, rats, and laminoids), several species of birds (such as pigeons and some psittacine species), lampreys and all invertebrates do not have a gallbladder . Why gallbladder is absent in horse? Our gallbladder serves as a storage pouch for bile — the emulsifying agent