France’s June heat wave killed millions of chickens, revealing a quiet agricultural crisis that hotter summers will repeat. The Chickens Were Doing Just Fine. Then the Heat Wave Killed Millions. Poult…

A long-running biological dogma is cracking: female mammals may generate new eggs after birth. The biological dogma that women don’t make new eggs after birth may be wrong The fixed-ovarian-reserve mo…

The biological dogma that women are born with all the eggs they will ever have may be wrong. The biological dogma that women don’t make new eggs after birth may be wrong New research challenges a corn…

Scientists have built a synthetic cell, SpudCell, that displays most of the hallmarks of life. Scientists Made a Cell With Most of the Hallmarks of Life. Here’s What to Know. The latest advance in syn…

Rapid fentanyl tolerance is now outpacing standard addiction treatments — with lethal implications. Regular Users Can Tolerate Previously ‘Unsurvivable’ Amounts of Fentanyl. New research from Los Ange…

A synthetic cell with most of life’s hallmarks raises urgent questions about what “alive” actually means. Scientists Made a Cell With Most of the Hallmarks of Life. Here’s What to Know. SpudCell, the…

The NIH has assembled the world’s largest integrated health database, pairing half a million genomes with clinical records and wearable data. N.I.H. Announces World’s Largest Integrated Health Databas…

Europe’s record heat wave has now killed at least 1,000 people in France alone, and rapid-attribution science confirms the event was impossible without climate change.

Europe’s heat wave is now confirmed impossible without climate change — and France just recorded 1,000 excess deaths. Is Climate Change Fueling Europe’s Heat Wave? Yes, Researchers Say. A rapid-attrib…

Europe’s record-breaking heat is now confirmed as impossible without climate change, and it is stress-testing infrastructure built for a cooler world. Is Climate Change Fueling Europe’s Heat Wave? Yes…