How many vertebrae do non-human mammals have ?
Seven cervical vertebrae is essential character of the mammals, except some mammals. Bradypodidae (three-toed sloth) has 8/9, megalonychidae (two-toed sloth) has 6 and trichechus (manatees) has 6 cervical vertebrae. Component of other part of the vertebral column differ from species to species. Dogs and cats have 13 thoracic, 7 lumber and 3 sacral vertebrae. Whales have 14 cervical, 15 lumber, and 0 sacral vertebrrae. Chimpanzees have 13 thoracic, 4 lumber, and 4/5 sacral vertebrae. The number of coccygeal verbrae is very different from animals. Whales have 24 coccygeal vertebrae. Some mammals have 50 coccygeal vertebrae.