The underwater webcam attached to Hayley Shephard's boat captures what at first appear to be green glowing orbs as she motors through an estuary in remote Canada. Then the orbs come into focus, revealing some of the more ...
Drones will be used to discover more about the social lives of killer whales and help conserve these amazing mammals, which are at risk of extinction.
Federal researchers returning from a 30-day expedition to study whales and dolphins around the Hawaiian Islands said they are looking for clues to help sustain healthy populations of the marine mammals.
A huge, five-million-year-old whale tooth has been discovered on an Australian beach, providing the first evidence of the now extinct killer sperm whale outside the Americas.
Federal biologists have temporarily stopped tagging endangered killer whales in Washington state's Puget Sound after a dead orca was found with pieces of a dart tag lodged in its dorsal fin.
There's one last orca birth to come at SeaWorld, and it will probably be the last chance for research biologist Dawn Noren to study up close how female killer whales pass toxins to their calves through their milk.
The killer whales that spend time in the inland waters of Washington state already are tagged and tracked, photographed and measured.
Marine theme-park giant SeaWorld announced Thursday it will stop breeding orcas, also known as killer whales, and will no longer keep any of the giant sea creatures in captivity after its current generation dies.
Killer whales in European waters face extinction due to outlawed but long-lived pollutants that also threaten several species of dolphins, according a study released Thursday.