Growth rings on a fossil bone suggest at least one mammal ancestor gave birth to live young rather than laying eggs 236 million years ago.
Growth rings on a fossil bone suggest at least one mammal ancestor gave birth to live young rather than laying eggs 236 million years ago.
Many American diets may not include enough of this essential nutrient 
A telling hole in a Neandertal bone hints at a bitter end 
Brain implants are helping people who’ve lost their voice 
Can math stay human in the age of AI? 
Tiny implants can use the body itself to talk to each other 
Voyager 1 is nearly one light-day from Earth. What’s out there? 
Ukraine: Critical health supplies destroyed in ongoing Russian attacks 
AI, green energy and economic transitions risk leaving vulnerable communities behind, UN warns 
Afghanistan faces record hunger levels amid rampant rights violations 
World losing ground in ‘war on nature’ as progress on biodiversity targets lags