8-25. Mammals are excellent protein sources and, for Americans, the tastiest food source. There are some drawbacks to obtaining mammals. In a hostile environment, the enemy may detect any traps or snares placed on land. The amount of injury an animal can inflict is in direct proportion to its size. All mammals have teeth and nearly all will bite in self-defense. Even a squirrel can inflict a serious wound and any bite presents a serious risk of infection. Also, any mother can be extremely aggressive in defense of her young. Any animal with no route of escape will fight when cornered.
8-26. All mammals are edible; however, the polar bear and bearded seal have toxic levels of vitamin A in their livers. The platypus, native to Australia and Tasmania, is an egg-laying, semiaquatic mammal that has poisonous claws on its hind legs. Scavenging mammals, such as the opossum, may carry diseases.