Freshwater streams, ponds and lakes across the United States are becoming saltier, and new research from the University of Missouri shows the damage may be greater than scientists once thought.

The Christmas Island shrew, the only shrew species native to Australia, has been officially declared extinct. This small mammal, once endemic to the isolated Christmas Island in the Indian Ocean, has ...

With a shell that looks like a full moon, egg cases that look like broken pottery on the seafloor, a unique predatory style and even a feature comparable belly button, the moon snail that frequents La ...