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A mother and calf humpback whale swim in the Exmouth Gulf in Western Australia. Fredrik Christiansen/Functional Ecology hide caption

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Fredrik Christiansen/Functional Ecology

Recordings Reveal That Baby Humpback Whales 'Whisper' To Their Mothers

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Say what you will about naked mole-rats, but their bodies have a trick that lets them survive periods of oxygen deprivation. Roland Gockel/Max Delbruck Center for Molecular Medicine hide caption

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Roland Gockel/Max Delbruck Center for Molecular Medicine

Researchers Find Yet Another Reason Why Naked Mole-Rats Are Just Weird

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An Army horse wears a gas mask to guard against German gas attacks. Courtesy of U.S. National Archives hide caption

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Courtesy of U.S. National Archives

The Unsung Equestrian Heroes Of World War I And The Plot To Poison Them

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In a photograph taken Saturday, volunteers prop up a pilot whale at Farewell Spit in New Zealand. Overnight, more than 200 of the stranded whales returned to the sea. Marty Melville/AFP/Getty Images hide caption

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Marty Melville/AFP/Getty Images

Researchers found that rats experiencing positive emotions had an increased pinkish hue on their ears, like the animal on the left. The animal on the right is from the control group. Plos One hide caption

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Plos One