The difference between warm-blooded and cold-blooded animals involves the body temperature of the animal. Birds and mammals have warm blood and attempt to keep their internal parts at a set temperature. In a colder envir... More »

According to the Smithsonian National Zoological Park, warm-blooded animals regulate their body heat internally, while the body temperature of cold-blooded animals depends on the temperature of their surroundings. Mammal... More »

www.reference.com Science Biology Zoology

Because dinosaurs are classified as reptiles, one might assume that they are cold blooded, but some scientists suggest that dinosaurs may have been somewhere between cold and warm blooded. Though most animals fall into e... More »

www.reference.com Pets & Animals Dinosaurs

The five functions of the human circulatory system are the transportation of hormones, oxygen and nutrients; the removal of waste; the stabilization of the pH of bodily fluids; the maintenance of body temperature; and th... More »

Blood, a liquid made up of plasma and cells, has several functions including controlling body temperature, supplying oxygen and nutrients, removing waste, assisting the immune system and transporting hormones. Blood cell... More »

Large animals need a circulatory system because the cells in the interior of their bodies are too distant from the surface for absorbed oxygen to diffuse to them sufficiently. By circulating fluid carrying oxygen to thes... More »

The word "hog" refers to all animals known as swine while a "pig" is a young animal, according to America's Heartland. The Environmental Protection Agency concurs with this definition as it is used in the agricultural pr... More »