News
- Neuroscience
Newly discovered cells in mice can sense four of the five tastes
Some cells in mice can sense bitter, sweet, sour and umami. Without the cells, some flavor signals don’t get to the ultimate tastemaker — the brain.
- Archaeology
The oldest known grass beds from 200,000 years ago included insect repellents
Found in South Africa, 200,000-year-old bedding remnants included fossilized grass, bug-repelling ash and once aromatic camphor leaves.
- Life
Climate change, not hunters, may have killed off woolly rhinos
Ancient DNA indicates that numbers of woolly rhinos held steady long after people arrived on the scene.
- Health & Medicine
4 reasons you shouldn’t trash your neck gaiter based on the new mask study
Despite news coverage to the contrary, the study was meant to figure out how to evaluate masks, not actually do the comparison.
