Wildlife officials in the U.S. and Canada report cases of chronic wasting diseases where it hasn't been detected before.
Not even the strongest microbes can survive volcanic eruptions, but they are capable of returning surprisingly quickly, according to a new study.
In a first, burrowing bees have been discovered nesting inside the fossil remains of other mammals.
The two top predators seem to be working together to track, kill, and feast on salmon, researchers say.
