At Kruger National park, a wildlife photographer spotted a giraffe covered in hundreds of skin lesions that may be caused by a rare bovine papillomavirus.

Fossil evidence from North China indicates that certain ecosystems may have rebounded within just two million years after the ...

Elon Musk Steps Up Efforts to Cull Federal Work Force Mr. Musk said federal workers must summarize their accomplishments for the week or be forced to leave, borrowing a tactic he used at his ...