Most animals are not monogamous; for example, most lizards are non-monogamous. Animals like prairie voles, Atlantic puffins, some penguin species, and Eurasian beavers are known to exhibit varying levels of monogamy. However, monogamous behavior is rare among mammals, with only about 3-5% of mammal species being socially monogamous, including certain primates, wolves, beavers, and some bats. Many animals that form pair bonds may still engage in extra-pair mating, so strict monogamy is quite uncommon in the animal kingdom. Thus, a typical animal that is not monogamous would be most lizards or many mammal species outside this small percentage.