454 results
454 results for: Dolphins
- Paleontology
New Fossils Resolve Whale’s Origin
The first discovery of early whale fossils with key ankle bones intact provides compelling paleontological evidence that whales are closely related to many living ungulates, a relationship already supported by molecular data.
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Copy Crab: DNA confirms that crab forms have several origins
New genetic evidence suggests that crabs aren't all close relatives and their characteristic shape evolved independently on numerous occasions.
- Earth
A dietary cost of our appetite for gold
This Mothers Day, many moms will find their brood and mates proffering glittering booty: sparkling necklaces, earrings, bracelets, brooches, and rings fashioned in whole or in part of gold. There may also be gilded plates, glasses, and grandmas favorite–fragile, matched sets of hand-painted tea cups and saucers. As women admire these tokens of their loved […]
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- Humans
Rare animals get U.N. protection
Several types of whales, river dolphins, the great white shark, and an unusual camel are among animals designated to receive new or heightened protection under a United Nations treaty.
- Earth
A Dam Shame? Project may slam China’s biodiversity
When the Three Gorges Dam begins to impound the waters of the Yangtze River in China later this year, dozens of mountains and other elevated areas upstream will become islands—an outcome that will probably devastate the rich diversity of species now living along the river.
- Earth
Whale meat in Japan is loaded with mercury
Some people in Japan who eat dolphins and other toothed whales are ingesting amounts of mercury that exceed legal health limits.
- Animals
Bad Bubbles: Could sonar give whales the bends?
Odd bubbles of fat and gas have turned up in the bodies of marine mammals, raising the question of whether something about human activity in the oceans could give these deep divers decompression sickness.
- Animals
Sponge Moms: Dolphins learn tool use from their mothers
Dolphins that carry sponges on their beaks while looking for food may have learned the trick from their mothers instead of just inheriting a sponge-use gene.
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Sleepless in SeaWorld: Some newborns and moms forgo slumber
Orca-whale and dolphin babies and their mothers appear to skip sleep for as long as a month after the pups' birth.
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Reflections of Primate Minds: Mirror images strike monkeys as special
Capuchin monkeys don't react to their own mirror images as they do to strangers, perhaps reflecting an intermediate stage of being able to distinguish oneself from others.
