Wild sheep grazed in the Black Desert 14,500 years ago

Excavations of architecture and associated deposits left by hunter-gatherers in the Black Desert in eastern Jordan have revealed bones from wild sheep - a species previously not identified in this area in the Late Pleistocene. ...

Newest solar cells underperform in cloudy countries

To determine how efficient new solar cells convert sunlight into electricity, small sample cells are tested under ideal conditions. However, the reported efficiency is not very representative of the actual annual yield when ...

No microbes? No problem for caterpillars

The microbiome seems ubiquitous: humans and many other species rely on billions of tiny organisms in their guts to aid in digestion, metabolism and other functions. Now, scientists at the University of Colorado Boulder are ...

Study links fish stress hormones to whether they take the bait

Take a fish out of water and its stress hormones will go up. Adrenaline and noradrenaline, the "fight or flight" hormones, peak first, followed more gradually by cortisol. A new study finds that largemouth bass whose cortisol ...

page 1 from 9