National Geographic (@natgeo)

In 2023, paleoclimatologist and Nat Geo Explorer Gina Moseley led an expedition to Greenland’s northernmost caves, including the previously unvisited Wulff Land Cave, hoping to learn more about Greenland’s prehistoric past.

But what goes into preparing for such an expedition?

Join expedition doctor Nathan Hutchinson-Peacock @expedition_doctor as he unpacks the life-saving equipment he carried with him to one of the most remote parts of the Arctic.

Discover more about Moseley’s expedition and what her team discovered at the link in bio.Video by @shonephoto

Emerging science suggests that the effects of trauma could be genetically passed down from one generation to another.“If you feel you have been affected by a very traumatic, difficult, life-altering experience that your mother or father has had, there’s something to that,” says Rachel Yehuda, professor of psychiatry and neuroscience of trauma at Mount Sinai in New York.

Her research points to a small epigenetic “signal” that a life-altering experience “doesn’t just die with you,” she says.

“It has a life of its own afterwards in some form.”Read more on what scientists are gathering about emotional trauma transcending generations at the link in bio.Photograph by Tek Image, Science Photo Library

Photos by @MichaelGeorge | For first-time visitors to New Zealand and the subantarctic islands, the landscape is often described as alien or like another planet.

There’s a reason for this.

Most people have never seen these plants before.

Many of the plant and bird species are endemic, meaning they evolved on these islands and only exist here.

Enderby Island is one of the most remote places on Earth–some 300 miles (480 kilometers) south of New Zealand’s mainland.

As our guide, Gus, described it: “This island is like a real-life, magical fairyland.”For more insights into the natural world, follow along @michaelgeorge.

On January 26, a team of researchers in the Canary Islands saw something no one on Earth has documented before—a black seadevil anglerfish slowly weaving its way to the ocean’s surface.

Known for their gaping jaws and bioluminescent lures, these fish typically reside between 650 and 6,500 feet deep, making this a remarkable event.

Head to the link in bio to learn more about the black seadevil anglerfish—and why scientists think it came so close to the surface.

Video by David Jara, Marine Wildlife Photographer (@jara.natura)

One wrong move could have sealed Corey’s fate.

#ExtremeRescues is now streaming on @hulu.

Ready for a glimpse of the past?

️ Paleoartists like @john_gurche_paleoart can create startlingly lifelike facial reconstructions based on ancient skulls, providing fascinating insight into what early hominins—such as Homo longi and Homo erectus—may have looked like.

Some of the latest archaeological discoveries and breakthroughs in DNA analysis are informing paleoartists’ work in incredible ways—check out the link in bio to read more about their work to recreate the «other humans» in our evolutionary history.

Amazon river dolphins have been spotted peeing into the air, shocking scientists…and the internet.During a recent study, scientists observed a group of Amazon river dolphins for more than 200 hours and saw males spurt urine into the air 36 times.

The frequency suggests that “aerial urination” is a common behavior, rather than an unusual one-off.

Some researchers believe it could be a form of social expression, a way to indicate health or identity.Learn more about this peculiar behavior and how scientists are deciphering it at the link in bio.Video By John Y.

Wang / CetAsia Research

A diet high in ultra-processed foods could hurt your brain for similar reasons that these diets are connected to a slew of other chronic diseases.Processed foods can be healthy; it’s the ultra-processed items that are linked to poor health.

What’s the difference?

Very generally, ultra-processed foods use ingredients not found in a home kitchen.Visit the link in bio to learn more about reducing the quantity of ultra-processed foods in your diet.Photograph by wildpixel, Getty Images

Photo by @joelsartore | With paws like a cat, a tail like a monkey, and round ears like a weasel, the fossa—like this one at the zoo in Omaha, Nebraska—can be hard to categorize at first glance.

Although they share some similarities with cats, fossas are most closely related to mongooses and civets.

Marooned in Madagascar for millions of years, the fossa became the largest carnivore on the island, dominating the landscape.

They are excellent hunters and eat birds, mice, and pigs, but these carnivores often feed on another animal unique to the island: lemurs.To see more species featured in the Photo Ark, follow me @joelsartore.

#PhotoArk

In 2015, scientists noticed a male macaque monkey trying to mate with a female sika deer on the island of Yakushima, Japan.

At the time, they assumed it was an unusual one-off occurrence—until it happened again.Over the past decade, scientists have observed several macaques across Japan—both male and female—attempting to mate with deer.

The behavior appears to have spread via social transmission, but the exact reason this happens remains up for debate.Learn more about this peculiar behavior at the link in bio.Photograph by Atsuyuki Ohshima (@atykosm)