A newly identified ancient shark species, Macadens olsoni, has been at Mammoth Cave National Park. The National Park Service ...

A newly identified species of ancient shark has been discovered at Mammoth Cave National Park, marking another significant ...

Founder and chief product officer Nikolas Kelly shines a light on the groundbreaking communication tool, “Sign-Speak,” that is helping bridge the gap between deaf and hearing individuals.

ABC's Morgan Norwood reports on temperatures nationwide rising to triple digits. Meanwhile extreme heat warnings are in effect from coast to coast.

The suspect in the shooting, identified by police as 18-year-old John Fuentes, was taken into custody hours after the ...