Sloths have changed quite a bit in the last ten thousand years. The slow-moving, sleepy, leaf-eating creature we see hanging ...

An international team of scientists completed a study revealing the global impacts of vanishing glaciers and their effect on ...

The end of the Ordovician, in contrast, was kicked off by the Earth’s thermostat firmly flipping to “cold” – and much like ...

On a shrub-covered dune in San Francisco’s Presidio, biologist Durrell Kapan and a group of volunteers huddle around a tiny plastic condiment container placed delicately amid a cluster of ...