Dinosaur lunchbox, hidden in Smithsonian museum, features family and work mementos.
A new exhibit called ‘Deep Time’ enlivens a story that goes back billions of years.
At Montana’s American Prairie Reserve, conservationists look to re-create an ecosystem that has nearly disappeared.
If you guessed “trees,” you’re in for a surprise.
Brush up on your knowledge of noteworthy scientists with this quiz
Look through some of the world’s species that could face extinction
Injuries aren’t the only reason Washington is near the bottom of the National League.
The world celebrates Leonardo da Vinci’s inventions and artwork.
Make something for Mom on her special day
Tigers, chimps, giraffes and other babies make their debut in facilities around the world.
Kids got the chance to partake in festivities with the president and first lady.