Wild spiders live in a vast spectrum of environments. Tropical spiders, for example, live in tropical forests, their oldest known habitat, where the year-around warmth allows them to survive and grow into enormous monsters. They build gigantic webs between several trees at once, and feed on the lions, tigers and hippos that get trapped in them. These spiders usually live for several centuries, grow to the size of elephants, and, like elephants, never forget.