Siblings Can Have Surprisingly Different DNA Ancestry. Here's Why. loading...
Siblings Can Have Surprisingly Different DNA Ancestry. Here's Why.
When it comes to tracing your roots through your genes, biological siblings may have less in common than many people expect.
Human Sperm Has A Surprising Tail Shape We've Never Noticed Before loading...
Human Sperm Has A Surprising Tail Shape We've Never Noticed Before
Using 3-D imaging, researchers have discovered a helix structure. The find could help develop drugs for male infertility, or contraception.
Mysterious Terraformed Island Offers New Clues to Life’s Survival loading...
Mysterious Terraformed Island Offers New Clues to Life’s Survival
A 150-year-old experiment on the remote Ascension Island may help us green Mars. Can it also help us save Earth?
A Mezcal Boom Spurs Creative Approaches to Dwindling Agave loading...
A Mezcal Boom Spurs Creative Approaches to Dwindling Agave
Farmers in Oaxaca, Mexico, are counting plants and trying to take advantage of rising prices without pushing an important species towards extinction.
How Time Rules Your Body—and Your Social Life loading...
How Time Rules Your Body—and Your Social Life
We have clocks in our bodies down to the cellular level.
In Rare Killing, Chimpanzees Cannibalise Former Leader loading...
In Rare Killing, Chimpanzees Cannibalise Former Leader
The rare incident may have been all about sex, researchers suggest. Warning: graphic content.
Pale, Beady-Eyed Crab Named for Harry Potter loading...
Pale, Beady-Eyed Crab Named for Harry Potter
The name also honours Harry Conley, the collector who first found the crabs.
Pictures Reveal One of the Last Unexplored Places on Earth loading...
Pictures Reveal One of the Last Unexplored Places on Earth
Diving miles beneath the sea, an ROV finds a new type of volcanic vent teeming with life near the Mariana Trench.
About the Show

For many living creatures, including humans, eyes are an integral survival tool. Learn how eyes have also inspired incredible emerging technology.

Newsletter

Never miss a Nat Geo moment

Your email address
Submit