Eileen

Most mammals are fairly catholic in their tastes — as long as the food falls into the right food group. While carnivores such as canids prefer to eat the flesh of other mammals, they also enjoy fish and insects and will feed on the gut of their prey even when it's full of plant matter. Even the zebra-loving lion will devour a distasteful human when it is too old to catch anything else. Omnivores such as bears are opportunistic and can thrive on a variable mix of meat and plants. Herbivores, however, usually restrict their diet to plants — except those female herbivores that eat their placenta after birth. A few herbivores are so strict that they'll turn up their nose at most other food, preferring one specific kind of plant. Giant pandas primarily eat bamboo, for instance, and koalas feed only on a few species of smooth-barked eucalyptus trees.