Endangered killer whales that frequent the inland waters of Washington state are having pregnancy problems because they cannot find enough fish to eat, according to a new study.
The great white shark is one of the ocean's most powerful predators, yet it is sometimes prey for orcas that killed several of the formidable creatures off South Africa's coast this month.
France on Saturday banned the breeding in captivity of dolphins and killer whales under tighter rules that campaigners hope will eventually herald the end of shows involving the animals.
Killer whales are on an unprecedented killing spree in California's Monterey Bay, attacking and feeding on gray whale calves, a marine biologist said.
Newborn humpback whales and their mothers whisper to each other to escape potential predators, scientists reported Wednesday, revealing the existence of a previously unknown survival technique.
Droplets and exhaled breath caught from the blowholes of killer whales along the Pacific coast are providing scientists with insights into whale health and revealing bacteria and fungi that may be a threat to the mammals.
The energetic cost of swimming at high speed when startled may be a factor in strandings of dolphins and whales
Dolphins swimming at top speed use more than twice the amount of energy per fin beat than dolphins swimming at a more relaxed pace, according to a study by scientists at UC Santa Cruz. The researchers also found that startled ...
Around 600 pilot whales recently became stranded on a New Zealand beach, around 400 of which died before volunteers could refloat them back into the sea. Sadly, this kind of mass whale stranding has occurred since human records ...
The mass stranding of more than 400 pilot whales on the beaches of New Zealand on Friday ranks among the worst in a nation accustomed to the phenomenon.
More than 80 false killer whales have been found dead after stranding themselves along the remote coast of Southwest Florida in Everglades National Park, the National Oceanic and Atmospheric Administration reported Monday.