Harvard scholar Henry Louis Gates, Jr., says he hopes this season of the PBS series 'Finding Your Roots' helps a divided U.S. see how all Americans have unique family mysteries...

DNA testing for dogs has surged in recent years, with over a million dogs tested in little over a decade. DNA testing for dogs has surged in recent years, with more than 1 million dogs tested in littl...

Dolphinaris Arizona says it will close temporarily as a panel of experts investigates potential factors in the death of four dolphins...

Scientists report that a fish appears to recognize itself in a mirror _ and that raises a key question for experts in animal mental prowess...

Origin stories aren't just for comic-book superheroes, as a new film about the evolution of whales, elephants and other animals intends to show....

Hot water around industrial plant in coastal Israeli city draws schools of sharks, also tourists...

Experts say the population of monarch butterflies wintering in central Mexico is up 144 percent over last year...

University of Florida researchers say far fewer shark bites were reported worldwide last year...

Argentine authorities say they've found the remains of two missing sisters and have arrested the son of one of them...

The number of environmental laws worldwide has increased 38-fold since 1972, according to a UN report released Thursday. In China, a pioneering nonprofit is trying to hold government accountable to it...