These stories situate their protagonists in unpredictable fights against nature's toughest environments and vicious animals.

While some animals have evolved to sprint, soar, or blend into their surroundings, others have developed unusual traits that seem to defy practicality. Nature ... of a sci-fi movie.

In The Power of Play, a documentary from The Nature of Things, we learn that play is just as important in the animal world — for youngsters and adults. Here are some examples. Horses start ...

While some animals have evolved to sprint, soar, or blend into their surroundings, others have developed unusual traits that seem to defy practicality. Nature doesn’t always ... something straight out ...