Squirrels are among the most widely known and recognized mammals in the world. Living in an extraordinarily diverse range of habitats, some can fly, some can swim, some live in trees or underground, others love icy wastelands or burning hot deserts.
Meet the first animal visitors to a new manmade waterhole in the African savannah. Using state-of-the-art cameras, scientists watch as warthogs and elephants discover the new oasis. But things become dangerous when leopards and lions close in.
The world's biggest beasts have always captured the imagination. But whilst being big can have its advantages, it also comes with sizeable challenges. Take the world's largest lizard, the Komodo dragon, whose huge appetite means it must take on prey ten times its weight, or the tallest animal of them all - the giraffe - who, with such a long neck, must control immense blood pressure. Nature's biggest beasts must go to extraordinary lengths to thrive. These are their epic survival stories!