Long-tailed weasels live in dens made by other animals in a variety of habitats. They can swim and climb “quite effectively,” ...

Several inches of snowfall kept the Smithsonian’s National Zoo and Conservation Biology Institute closed to visitors this week. But the animals and their caretakers still had a good time!

Their wide paws and claws are adapted for swimming, catching prey and digging dens in the snow ... polar biome and how plants, animals and people have adapted to live in this biome.