Many penguin species keep the same mate for life, or at least for a breeding season. They also like to return to the same nesting site year after year. Sometimes these are the nests they were hatched in! Both penguin parents, male and female, care for the young.

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    Bats don’t slip from their sleeping roosts because they can lock their talons onto the branches where they sleep. The



    Unlike most ducks, wood ducks nest in tree cavities—for instance, you might find one in an old woodpecker hole! The

    panda carrying cub in her mouth


    A wild female panda may have five to eight offspring in her lifetime, but she will only give birth once every other year.