Animals
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PaleontologyThis exquisite Archaeopteryx fossil reveals how flight took off in birds
Analyses unveiled never-before-seen feathers and bones from the first known bird, strengthening the case that Archaeopteryx could fly.
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AnimalsWild chimpanzees give first aid to each other
A study in Uganda shows how often chimps use medicinal plants and other forms of health care — and what that says about the roots of human medicine.
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AnimalsThis tool-wielding assassin turns its prey’s defenses into a trap
This assassin bug's ability to use a tool — bees’ resin — could shed light on how the ability evolved in other animals.
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AnimalsChimp chatter is a lot more like human language than previously thought
Chimpanzees combine hoots, calls and grunts to convey far more concepts than with single sounds alone. It may be a first among nonhuman animals.
By Jake Buehler -
AnimalsAncient poems document the decline of the Yangtze finless porpoise
The porpoise is critically endangered. Ancient Chinese poems reveal the animal’s range has dropped about 65 percent over the past 1,400 years.
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AnimalsFrog ribbits erupt via an extravagant variety of vocal sacs
Shape matters as well as size in the great range of male frog show-off equipment for competitive seductive serenades.
By Susan Milius -
Health & MedicineA man let snakes bite him 202 times. His blood helped create a new antivenom
A new antivenom relies on antibodies from the blood of Tim Friede, who immunized himself against snakebites by injecting increasing doses of venom into his body.
By Meghan Rosen -
AnimalsCool water could protect sea stars from a mysterious disease
Sunflower sea stars discovered taking refuge in fjords may offer clues to saving the critically endangered species from sea star wasting disease.
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AnimalsThe axolotl is endangered in the wild. A discovery offers hope
Introducing captive-bred axolotls to restored and artificial wetlands may be a promising option for the popular pet amphibian.
By Anna Gibbs -
Health & MedicineBird flu in cows shows no signs of adapting to humans — yet
Easy replication in cattle mammary glands means H5N1 bird flu is under no evolutionary pressure to adapt to spread easily in humans.
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AnimalsThis caterpillar wears the body parts of insect prey
Dubbed the “bone collector,” this caterpillar found on a Hawaiian island disguises itself while stalking spider webs for trapped insects to eat.
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AnimalsHow science can help you train your puppy
Puppies with a good grasp of basic gestures, self-confidence and impulse control grow into well-behaved adults, a new study suggests.