Minecraft is the world's best-selling computer game and soon to be a Hollywood film. This is why children can't get enough of ...

The Hoffman's two-toed sloth is one of the world's slowest mammals—so sedentary that algae grows on its furry coat. The plant gives it a greenish tint that is useful camouflage in the trees of ...

The first time Camilla saw a caterpillar, she mistook the creature for a more fantastical apparition: a dragon wearing ...

The major groups include fish, amphibians, reptiles, birds and mammals. Invertebrates don't have a backbone. They either have a soft body, like worms and jellyfish, or a hard outer casing covering ...