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It’s official: Dolphins and orcas have crossed evolution’s point of no return to live on land again
A dolphin breaking the surface for air can seem like a reminder of its mammalian past. But evolution is not nostalgia. The ...
"Return to the Sea portrays the life and evolutionary times of marine mammals--from giant whales and sea cows that originated 55 million years ago to the deep diving elephant seals and clam-eating ...
A large international study reveals that mammals tend to live longer when reproduction is suppressed. On average, lifespan increases by about 10 percent, though the reasons differ for males and ...
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