
Animals
These fish yawn — and it’s contagious
Zebrafish are the first cold-blooded animals known to behave this way. Contagious yawning may affect other behaviors in these fish, too.
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Zebrafish are the first cold-blooded animals known to behave this way. Contagious yawning may affect other behaviors in these fish, too.
This DNA tweak in plants harnesses the same molecule behind our bad breath and transforms it into something worse: the stink of rotting flesh or dung.
Frogs resistant to a deadly fungus jump-started populations in these new areas.
Working with mice, scientists have mapped a brain pathway that links an unfamiliar flavor with later food poisoning symptoms.
The newfound wasp species — from 99 million years ago — likely laid eggs on the small creatures that would have been caught in this trap.
The interplay between living things and the physical environment gives rise to Earth’s thriving, life-sustaining ecosystems.
Water's subterranean travels can be long, slow — and carry pollutants far from where they first got drawn into the Earth.
DNA supports Picuris Pueblo stories of their ancestry going back more than 1,000 years — to the famous Chaco Canyon site.
The axolotl program's success shows promise in helping protect this highly popular amphibian — currently found in only one lake — from dying out in the wild.
Many culinary cultures around the world prize these nutritious and flavorful insects. New approaches may help giant water bug farming efforts.