Today in Boston Celtics history, Larry Bird's No. 33 jersey in a special ceremony at the TD Garden in 1993.

Frogs named... Mountain Chickens? Join us for a new episode of SciShow where we explain how some animals end up with wacky ...

They sometimes touched their lips together, breathed into one another’s open mouths, or stood on two legs and hugged. Goodbyes, on the other hand, were long understood as a behavior that only humans ...

The smallest bird of prey on the entire African continent, the pygmy falcon weighs about as much as a golf ball. These clever ...