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Stealth Mode: Killer Whales Go Dark to Stalk PreyKiller whales that feed on marine mammals may passively listen for the sounds of their prey and then strike in complete darkness, new research suggests.
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Puget Sound Orcas To Remain on Endangered ListThe killer whales of Puget Sound are one of a kind.
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DNA Sheds Light on Rare Killer Whale TypeA scarcely seen type of orca is likely a distinct subspecies or species, researchers say.
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How Killer Whales Boosted Porpoise EcholocationHarbor porpoises likely evolved high-frequency sonar clicks to avoid orcas.
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Killer Whales May Have Been Trapped by Climate ChangeAs the planet warms, will we see more trapped sea mammals?
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'Mama's Boys' May Explain Killer Whale Menopause
Menopause allows aging killer whale mothers to care for their adult sons, new research shows.
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Image Gallery: Russia's Beautiful Killer WhalesOne all-white male orca stands out from the crowd.
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One of a Kind: All-White Killer Whale SpottedThe male orca got its name "Iceberg" from its towering white dorsal fin.
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False Killer Whales Focus Sound Waves to 'See' PreyFalse killer whales can focus their echolocation sounds on an object to get a better "view" of it.
