Capt. Evan Clark was patrolling the Allegheny River to help Three Rivers Waterkeeper get a better understanding of just how much of a mark that fuel spill made.

Three Rivers Waterkeeper said oil sheens from a diesel spill on Route 28 can be seen on the Allegheny River as far down as ...

Up to 50 transplant patients will receive a genetically modified pig kidney in a clinical trial that will launch this summer ...

Fort Lauderdale beach reopened to swimmers Sunday after an oily substance washed ashore. The U.S. Coast Guard is still ...

Short snouts and a flat profile -- within a span of 100 years, humans have significantly changed the shape of the skulls of German domestic pigs. This is likely down to new breeding practices ...

Surgeons at Massachusetts General Hospital have successfully performed the fourth pig kidney transplant in the U.S.