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Baby Moby Dick? Rare white humpback whale calf filmed off AustraliaThe latest footage follows two other sightings of all-white, newborn humpback calves — but experts aren't convinced these whales are albino like the famous Migaloo.
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What is the deepest-diving mammal?One marine mammal has been documented diving as deep as 9,816 feet — equivalent to the depth of over 30 Statues of Liberty stacked on top of one another.
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This colossal extinct whale was the heaviest animal to ever livePaleontologists in Peru have described an ancient species of whale that was way heavier than a blue whale.
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Watch orca tear open whale shark and feast on its liver in extremely rare footageThe orca "slurped in the liver and then the whale shark just fell and descended down, with no movement," James Moskito of Ocean Safaris told Live Science.
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Dolphins terrorize and bite beachgoers in Japan — for the 2nd year in a rowFour separate incidents on a beach in Fukui prefecture on July 16 echo a string of attacks in the same region last year that may have been perpetrated by a single Indo-Pacific bottlenose dolphin.
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Dolphins and orcas have passed the evolutionary point of no return to live on land againScientists have discovered that once a mammal has become fully aquatic, it passes a threshold that makes a return to terrestrial landscapes almost impossible.
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Fears that dead 60-foot-long whale in Ireland could explode sends experts scramblingExperts abandoned the autopsy of a dead fin whale after they heard bubbling noises from the creature's gut, indicating there was a chance it could explode if opened.
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$500,000 chunk of 'floating gold' found in dead whaleThe huge chunk of ambergris was found lodged inside the sperm whale — and scientists believe it ruptured its intestine, causing its death and subsequent beaching in La Palma.
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'An enormous mass of flesh armed with teeth': How orcas gained their 'killer' reputationFrom Pliny the Elder to the Swedish naturalist Carl Linnaeus, historians and naturalists have found many ways to describe these fascinating apex predators.
