A female grey seal nursing her pup on the beaches of Sable Island, Nova Scotia. Gray seals give birth once a year and females will quickly lose ~30% of their body mass while the pup triples in size ...

Yellowstone National Park has some of the strangest natural wonders. Among these attractions are the park's 500 active geysers, which comprise more than half of the world's geysers. These marvels are ...