Joshua Rapp Learn

Joshua Rapp Learn

 

Joshua Rapp Learn is a D.C.-based journalist who writes about science, culture and the environment. He has crossed the Sahara Desert, floated down the Amazon River and explored in more than 50 countries.

Elephants communicate in low rumbles, each listening for the resulting vibrations in the ground with their feet.

Some Animals Take Turns While Talking, Just Like Humans. Why?

Understanding their courteous exchanges—from frog croaks to elephant rumbles—could shed light on the origins of human conversation

You'd expect to see a raccoon snuffling around at midnight. A sun bear, not so much.

Fear of Humans Is Forcing Daytime Animals Into Night Mode

The stress is pushing some animals to adjust their schedules—but not all will be quick enough to adapt

For most humans, meditating in the snow would be highly uncomfortable. For Wim Hof, it's euphoric. Note: Wim Hof not pictured.

Science Explains How the Iceman Resists Extreme Cold

MRI scans reveal that Wim Hof artificially induces a stress response in his brain

A flock of beluga whales in the Sea of Japan, off the coast of Russia.

How Culture Guides Belugas' Annual Odysseys Across the Arctic

Strong, multi-generational ties help the cetaceans make the same migrations year after year

The body-shaped sarcophagi of Karajía contained the remains of high-ranking Chachapoya ancestors.

When Genetics and Linguistics Challenge the Winners’ Version of History

New research shows that indigenous Peruvians were more resilient than the conquering Inca gave them credit for

When it comes to ancient remains, isotope analysis could help scientists separate dogs from wolves.

Dogs and Humans Didn’t Become Best Friends Overnight

First, we feared and ate them, a new isotope analysis reveals

Many animals, like this red sphinx cat, are bred to be hairless. Other times, animal baldness is a symptom of stress and other factors.

Do Other Animals Besides Humans Go Bald?

From Andean bears to Rhesus macaques, non-human mammals have hair woes of their own

While highly social and cooperative among themselves, dwarf mongooses take a while to warm up to newcomers.

For Immigrant Mongooses, It Can Take Time to Earn Society’s Trust

In some species, however, deporting your own family members is the norm

Simply by pooping, the once-endangered cape zebra helps researchers measure its health and well-being.

How Stressed Out Are Zebras? Just Ask Their Poop

Scientists are scooping up the pungent piles of data to measure the health of once-endangered ungulates

One of the excavated burials in Drawsko, Poland showed a skeleton with a sickle placed over its neck, likely to prevent the dead from rising again as the undead.

Burials Unearthed in Poland Open the Casket on The Secret Lives of Vampires

What people actually did to prevent the dead from rising again was very different than what Hollywood would have you think

A juvenile Western chimpanzee in the Bossou Forest of Mont Nimba, Guinea.

Western Chimpanzees Have Declined By 80 Percent Over The Past 25 Years

The largest population of these animals—the only critically endangered chimp subspecies—sits in a region riddled with bauxite mines

How Artificial Intelligence Is Improving Magic Tricks

Computer scientists have designed a trick that uses an algorithm to search the internet for the words most associated with images

Caribou herd mountain crossing in Alaska Range.

How Killing Moose Can Save Caribou

Conservation often requires difficult decisions

Male wolf spiders may have eight eyes, but they still can't tell whether the female they're mating with is dead or alive.

Whoa: Polygamous Wolf Spiders Have a Natural Form of Birth Control

Females have figured out how to get rid of unwanted sperm, allowing them to reap the benefits of multiple mates

The olm, or cave dragon, is the largest cave-adapted animal in Europe. These strange creatures spend their entire lives in caves, and face threats from pollution runoff from agriculture and chemical plants on the surface.

Cave Dragons Exist—And Saving Them Could Be Key to Protecting Drinking Water

New DNA techniques are letting researchers track down the largest, strangest cave animals in the world

The Hidden Dangers of Road Salt

It clears our roads, but also spells danger for fish, moose—and sometimes humans

The lush, rugged landscape of Japan's island of Hokkaido is a major draw for amateur photographers—but do Flickr photos really represent the most important conservation sites?

Is #Hashtagging Your Environment on Instagram Enough to Save It?

Location-based data might help pinpoint key ecosystems—or make conservation a popularity contest

This Asiatic cheetah, caught on camera in the Naybandan Wildlife Refuge in Iran, is likely one of just dozens in the region.

Poaching Isn't the Cheetah's Only Problem

Humans isolate the rare cats with roads and fences—which can be as devastating as hunting them outright

In times of desperation, female sawtooth sharks have been known to reproduce sans males. For other species, solo reproduction is downright vanilla.

Meet Eight Species That Are Bending the Rules of Reproduction

Spice up your mating life with relationship tips from rock lizards, sharks and water fleas

Deciding when to get divorced is a difficult calculation—even for birds.

Birds Struggle to Keep Their Marriages in Rapidly Changing Urban Environments

Deciding whether to get divorced is a complex calculation, even for birds

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