Humans
- Health & Medicine
Don’t Eat That Sandwich!
If you drop a sandwich on the floor, how quickly does it pick up bacteria?
- Health & Medicine
A Better Flu Shot
A new kind of vaccine that's made in caterpillar cells prevents influenza.
- Humans
A Long Trek to Asia
An ancient skeleton from a Chinese cave shows how far humans walked when they left Africa.
- Health & Medicine
Chew for Health
Surprise your teacher: New studies show that chewing gum might be good for you!
- Humans
Earth Rocks On
Some rocks in Greenland show that Earth's crust was moving even 3.8 billion years ago.
- Health & Medicine
Wake Up, Sleepy Gene
Variation in the length of one gene affects how well you function when short of sleep.
- Health & Medicine
Childhood’s long history
Our ancient ancestors had long childhoods, just as we do today.
- Health & Medicine
A fix for injured knees
A new way of repairing a common knee injury might someday help athletes recover faster.
- Humans
Stonehenge settlement
The remains of a prehistoric village lie near the legendary stone circle in England known as Stonehenge.
- Health & Medicine
Eat Out, Eat Smart
Knowing the number of calories in your restaurant meal can help you make healthier food choices.
- Humans
Island extinctions
Many of Australia's largest animals died out after people came to the island continent.
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