Indiana Attorney General Curtis Hill plans to appeal a judge's order permanently blocking a ban on abortions sought due to fetal genetic abnormalities and a requirement that aborted fetuses be buried ...

Researchers with the federal government and the New England Aquarium say they've developed a new model to provide better estimates about the North Atlantic right whale population, and the news isn't g...

It may not be surprising that an "aquatic desert" turtle faces long odds in life, but environmentalists and biologists still welcomed this week's endangered species designation for the Sonoyta mud tur...

Texas billionaire Edward P. Bass is giving $30 million to the University of Arizona to support the Biosphere 2 research facility...

The endangered California condor is making a slow but steady comeback in the wild three decades after the giant bird went nearly extinct...

Gene tests may help gauge who will benefit from cancer immune system treatments...

Pope Francis has overhauled the Vatican institute most closely associated with the conservative sexual morals promoted by St. John Paul II, saying it was necessary to adapt and expand its mission to a...

Correction: Tracking Sea Turtles story...

Sea lice in salmon poses no danger to human diners, but the fish and the farms that raise them are a different story...

The mass of warm water known as "the blob" that heated up the North Pacific Ocean has dissipated, but scientists are still seeing the domino-effect it is having on Northwest salmon and steelhead...