The mammals' mysterious clicks contain a stunning level of complexity, a new study shows. A group of sperm whales (Physeter macrocephalus) swims together in the Indian Ocean. For years, researchers ...

Whale watchers in Madeira captured the astonishing moment orcas took down the deep-diving marine mammal. The predatory behavior had never been documented in the region. A pygmy sperm whale was ...

Add Yahoo as a preferred source to see more of our stories on Google. A boater off the Southwest Florida coast made a rare sighting Jan. 31: two endangered North Atlantic right whales. The spectacular ...

An endangered North Atlantic right whale and her calf were spotted off Florida's Gulf coast, a rare sighting for the area. The whale, named "Millipede," is 21 years old and this is her third known ...