Emperor penguins march along the ice on Cape Washington on Antarctica's Ross Sea. Contrary to popular belief, these ...

“The bears are extremely fat this year, and I’m looking forward to seeing how people react to how fat they are,” says the former ranger who helped invent the popular contest. The Fat Bear Week ...

From giant stick bugs to rarely seen sea creatures, these animal videos fascinated us—and led to new scientific discoveries. An orca calf and adult swim in the Norwegian fjords. Orcas have been among ...