As China and the United States trade charges of a lab leak, researchers contend in a new paper that the Covid pandemic got ...

Our readers continue to grapple with this question, taking into account the energy cost of producing dark pigment as well as ...

The National Oceanic and Atmospheric Administration says it is searching for the person who stabbed a baby seal multiple ...

A complete Mixodectes pungens skeleton reveals it was a leaf-eating, tree-dwelling mammal closely related to primates and ...