On Antarctic ice, movement itself becomes a survival test, especially for an animal that spends months walking far inland to raise a chick. Emperor penguins travel across frozen sea ice that can ...

While sea otters spend the majority of their time in the water, river otters will often run and play on land. This leads to some interesting behavior that reminds us of fun childhood games: the “run ...

The reason we can gracefully glide on an ice-skating rink or clumsily slip on an icy sidewalk is that the surface of ice is coated by a thin watery layer. Scientists generally agree that this ...