New fossil research shows how human impacts, particularly through the rise of agriculture and livestock, have disrupted natural mammal communities as profoundly as the Ice Age extinctions. Fossil ...
A man in glasses looks into a fish tank in which fish of many colors are swimming. Ecotoxicologist Bob Wong studies how fish change when exposed to the antidepressant medication fluoxetine. Credit: ...
The Hidden Pressure Wolves Put on Other Predators That People Rarely See Changes How Ecosystems Work ...