Animals
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AnimalsWhere an ant goes when it’s gotta go
The black garden ant has been spotted defecating inside its own nest. Scientists now characterize these spots as ant toilets.
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AnimalsPenguins? How tasteless
Penguins may look all dressed up in tuxedo-wear, but their taste buds are the bare minimum. This means that the birds will never sense more than a hint of their meals’ true flavors.
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AnimalsEyelashes: The ‘sweet’ length
New mathematical and aerodynamics studies find what seems to be the optimal length for eyelashes — the length that protects best. And surprise: Longer is not always better.
By Susan Milius -
AnimalsOcean animals have mushroomed in size
Compared to a half-billion year ago, sea creatures are, on average, roughly 150 times bigger, a new study finds.
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AnimalsCats and foxes are eating up Australia’s mammals
Since the arrival of Europeans in Australia, a startling number of mammal species have disappeared. A new study puts much of the blame on cats and foxes introduced by the early settlers.
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AnimalsOrangutans take the low road
Cameras spotted orangutans walking down logging roads to get around. That may be a good sign that they can adapt to changes in their woodsy environment.
By Ilima Loomis -
AnimalsHellbenders need help!
Hellbenders already face threats such as habitat loss, pollution and disease. But climate change could make matters worse. And the problems facing hellbenders could spell trouble for more than just these giant amphibians.
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AnimalsScientists Say: Plankter
Plankton is the word used to describe a collection of these tiny free-floating organisms. This is what you call just one.
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AnimalsShark: Who’s your daddy?
Female sharks can store sperm from a male for months before releasing a case containing a fertilized egg. But almost 4 years? That’s a new record that has biologists scratching their heads over how this could have happened.
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AnimalsHow birds stay in the air
The sensors inside a boxy device measure the forces generated with each stroke of a bird’s wings. Learning how much force is needed to keep a bird aloft could help in designing future drones that flap, hover and dart.
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AnimalsResilient hearts for deep-sea divers
How do aquatic mammals have enough energy to hunt prey while steeply dropping their heart rate to stay underwater? A new study of dolphins and seals provides clues.
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Health & MedicineA whale of a lifespan
Bowhead whales can live more than 200 years. The secret to such longevity may lie in the Arctic species’ genes. Scientists recently mapped the whale’s genetic code. They found features that protect the marine mammal against cancer and other problems related to old age.