Life
- Genetics
DNA from extinct red wolves lives on in some mysterious Texas coyotes
Mystery canids on Texas’ Galveston Island carry red wolf DNA, thought to be extinct in the wild for 40 years.
- Genetics
This bacteria-fighting protein also induces sleep
A bacteria-fighting protein also lulls fruit flies to sleep, suggesting links between sleep and the immune system.
- Animals
Giant pandas may have only recently switched to eating mostly bamboo
Giant pandas may have switched to an exclusive bamboo diet some 5,000 years ago, not 2 million years ago as previously thought.
- Neuroscience
No, we don’t know that gum disease causes Alzheimer’s
A recent study linked gum disease and Alzheimer’s disease, but the results are far from conclusive.
- Animals
Scientists name 66 species as potential biodiversity threats to EU
North America’s fox squirrel, the venomous striped eel catfish and 64 other species are now considered invasive in the European Union.
- Plants
How light-farming chloroplasts morph into defensive warriors
Researchers now know which protein triggers light-harvesting plant chloroplasts to turn into cell defenders when a pathogen attacks.
- Health & Medicine
Readers have questions about Parkinson’s disease, moth wings and more
Readers had questions about Parkinson’s disease, the new definition of a kilogram’s mass, Saturn’s moon Dione and more.
- Anthropology
Dogs may have helped ancient Middle Easterners hunt small game
Jordanian finds point to pooch-aided hunting of small prey around 11,500 years ago, offering new clues into dog domestication in the Middle East.
- Animals
Male birds’ sexy songs may not advertise their brains after all
A biologist backs off an idea he studied for years that the mastery of birdsong is a sign of bird smarts.
- Neuroscience
Rocking puts adults to sleep faster and makes slumber deeper
People sleep better when their beds are gently rocked, a small study finds.
- Paleontology
Tiny eyes make a bizarre, ancient platypus-like reptile even weirder
An ancient oddball marine reptile had teeny-tiny eyes, suggesting it probably used senses other than sight to catch food.
- Animals
Young emperor penguins brave icy, winter waters in their first year
Young emperor penguins learn survival skills on their own, including how to navigate Antarctica’s icy winter ocean.
