A number of physiological characteristics must be present in an animal for it to be classified as a mammal. These traits include a four-chambered heart, a lower jaw made of a single bone, and three middle ear bones. Pigs meet all of these requirements.
According to About.com, pigs are one of about 225 species belonging to the even-toed hoofed mammal classification, a category known scientifically as Artiodactyla. Other key characteristics that are required of all mammals include the presence of a diaphragm, mammary glands, hair and an endothermic metabolic system. Mammals come in all sizes, from the 3-centimeter-long bumblebee bat to the blue whale, which can grow to be longer than 100 feet.Learn More
Pig slop is made of a variety of foods and is usually a mix of grains and produce. It often includes foods like melon rinds and stale bread.Full Answer >
The Cherokee Animal Clinic lists the characteristics of the Chester White pig being solid white hides and droopy ears. Utah Pork Producers goes on to explain that other characteristics of these animals is a high conception rate, large litters and no stress gene.Full Answer >
Famous pig names include Porky, Hamm, Miss Piggy, Piglet, Pumbaa, Spider Pig, Orson and Wilbur. Other names include Pop Pop, Budge, Napoleon, Remington, Monocle and Larry.Full Answer >
The liver has the same function in pigs as it does in all mammals, including the secretion of a digestive fluid called bile, the destruction of old red blood cells and the storage of substances such as vitamins and glycogen. It also aids in the removal of toxic matter from the blood.Full Answer >