In Other Animals
Most vertebrates have gallbladders, whereas invertebrates do not. However, its precise form and the arrangement of the bile ducts may vary considerably. In many species, for example, there are several separate ducts running to the intestine, rather than a single common bile duct, as in humans. Several species of mammals (including horses, deer, rats, and various lamoids) and several species of birds lack a gallbladder altogether, as do lampreys.
Read more about this topic: Gallbladder
Famous quotes containing the word animals:
“Man’s unique reward, however, is that while animals survive by adjusting themselves to their background, man survives by adjusting his background to himself.”
—Ayn Rand (1905–1982)