If you’re an adult human, odds are you already know a thing or two about tooth regeneration. Around age six, most of us begin to lose baby teeth in a process called eruption, exchanging our ...

Human Planet, a cinematic experience, bringing you the most amazing human stories in the world today. Humans and wildlife surviving in the most extreme environments on Earth. The BBC has been ...

PHOTO BY RUBY F. MCALLISTER Avian influenza (bird flu) is impacting wild birds worldwide and causing outbreaks in U.S. poultry and dairy cows, with human cases mainly reported in dairy and poultry ...