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Frog Hears With Its Mouth, Surprises Scientists

A tiny island frog makes do without an inner ear by using its mouth—a new hearing strategy not known before in nature, scientists say.

August 25, 2013: Running Ultramarathons at 18,000 Feet, Meeting Captive Killer Whales, and More

This week, join us as we run a 137-mile race 18,000 feet above sea level, then we meet beach-dwelling wolves that fish for salmon like bears (and occasionally harass humans), and finally, we learn about the SeaWorld orca who has been connected with three human deaths to appreciate how hard the large, social mammals are to maintain in captivity.

August 11, 2013: Holding our Breath in Underwater Caves, Biking Across Kyrgyzstan Mountains, and More

Join us this week, as we explore the labyrinth of underwater caves deep under Mexico’s Yucatan Peninsula for clues of its Mayan past, cycle solo through Central Asian mountain passes to climb remote peaks, and debunk American historical myths from the Wild West to the Surfin’ Safari.

Hero Shrew Found, One of “Most Bizarre Animals on Earth”

Watch out, Mighty Mouse: Scientists have found a new species of shrew with superhero strength and the oddest backbone of the animal kingdom.

July 21, 2013: Swimming From Cuba to Florida, Developing Deep Sea Diving Suits, and More

This week, join us as we attempt to swim from Cuba to Florida and meet a surprisingly potent form of jellyfish, then we listen to glaciers as they melt and learn what they’re telling us, and we hear protest songs from an indigenous Australian country singer.

What Can Sexy Robot Frogs Teach Us About Evolution?

Researchers use sexy robot frogs to gain insight into the evolution of complex behaviors.

3 Mammals That “Choose” Their Babies’ Sex

A new study says mammals can “choose” the sex of their offspring—does that include us?

Moths Vibrate Genitals to Avoid Bats

Moths vibrate their genitals to jam bat sonar, making them invisible to the predators, a new study says.

Top 10 Headlines Today: Cosmic Currency, Oldest DNA…

The top stories on National Geographic’s radar today: SETI and Paypal are teaming up to create the universe’s first space currency, DNA from an ancient horse has become the oldest ever sequenced, and…

Sperm Hoarders: Why Animals Store Semen

Some female animals—including fish, snakes, and octopi—store sperm in their reproductive tracts for years after mating. But why?

In Canada’s Ancient Water, New Life

Ancient water below Canadian gold mines may offer new clues about evolution—and new life forms here on Earth.

Moth’s Superhearing Evolved to Escape Bats

The greater wax moth evolved to hear better than any animal on Earth—all to avoid their nemesis, the bat, a new study says.

Lip-Smacking Primate Hints at Speech Evolution

A rare Ethiopian primate called the gelada makes sounds like people—giving insights into the evolution of human speech.

April Fools’ Day: Nature’s Wildest Masters of Deception

By Linda Poon April Fools’ Day is when people roll out their best pranks, tricks, and other shenanigans just for the sake of a good laugh. But compared with the tricksters of the animal kingdom, we’re all just amateurs. (Related: “April Fools’ Day Pictures: Seven Animal Hoaxes.”) For nature’s masters of deception, the use of…

“Phallus” Worm Is Evolutionary Missing Link

A type of burrowing worm that lived 508 million years ago has solved an evolutionary puzzle, a new study says.