Marineland says it has euthanized a seven-year-old beluga whale after a long battle with several different medical conditions ...

Expedition Killer Whale" reveals an hour-long lesson where adult orca teach calves how to hunt seals off Antarctica.

Sixty-six million years ago, at the end of the Cretaceous Period, an asteroid impact near the Yucat n Peninsula of Mexico triggered the extinction of all known non-bird dinosaurs. But for the early ...