News
- Oceans
Lack of nutrients stalled rebound of marine life post-Permian extinction
Warm sea surface temperatures slowed the nitrogen cycle in Earth’s oceans and delayed the recovery of life following the Permian extinction, researchers propose.
- Neuroscience
Fentanyl’s death toll is rising
The ability of fentanyl, an opioid, to freeze chest muscles within minutes may be to blame for some overdoses, a new autopsy study shows.
- Neuroscience
Eating shuts down nerve cells that counter obesity
A group of nerve cells shut down when food hits the lips, a study of mice finds.
- Archaeology
How to get Ötzi’s look
DNA from Ötzi the Iceman’s clothes and quiver traced to both domesticated and wild animals.
