Killer whale at risk due to inadequate prey population
Not having enough Chinook salmon to eat stresses out southern resident killer whales in the Pacific Northwest more than having boatloads of whale watchers nearby, according to hormone levels of whales summering ...
Russian scientists in quest to find elusive white orca
A team of Russian scientists say they will embark on a quest next week to observe the only all-white, adult killer whale ever spotted -- a majestic and elusive bull they have named Iceberg.
Judge tosses case seeking rights for orcas
(AP) -- An effort to free whales from SeaWorld by claiming they were enslaved made a splash in the news but flopped in court Wednesday.
Court to decide if SeaWorld whales are illegal 'slaves'
A California federal court is to decide for the first time in US history whether amusement park animals are protected by the same constitutional rights as humans.
Groups sue over Navy sonar use off Northwest
Conservationists and Native American tribes are suing over the Navy's expanded use of sonar in training exercises off the Washington, Oregon and California coasts, saying the noise can harass and kill whales ...
Juvenile predation preventing Steller sea lion recovery
A new study suggests that the impact of predation on juvenile Steller sea lions in the Gulf of Alaska has been significantly underestimated, creating a "productivity pit" from which their population will have ...
Whale activists sue to free Lolita from captivity
(AP) -- Supporters have offered $1 million for her release. Annual demonstrations have demanded her return to the Northwest. Over the years, celebrities, schoolchildren and even a Washington state governor ...
Protecting predator and prey when both are in trouble
When both a predator and its prey are conservationally at risk, it can be difficult to find the right balance of ecosystem management to sustain and protect both.
Killer whales migrate, study finds, but why?
Some killer whales, a study published Wednesday shows for the first time, wander nearly 10,000 kilometres (6,200 miles) from Antarctica's Southern Ocean into tropical waters -- but not to feed or breed.
How smart are killer whales? Orcas have 2nd-biggest brains of all marine mammals
Neuroscientist Lori Marino and a team of researchers explored the brain of a dead killer whale with an MRI and found an astounding potential for intelligence.