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Biology

GLP-1 drugs, medications that are self-injected to support weight loss and lower blood sugar, helped peptides become mainstream.

Peptides Are All the Rage, Promising Miracle Cures and Makeovers Delivered by Injection. How Did We Get Here?

Experts say the peptide craze is part of a broader phenomenon, as patients look beyond the regulated health system to address problems that doctors have struggled to treat

This year's Ig Nobel Award ceremony took place in Zurich, Switzerland.

Stealing Candy From Children, Splash-Proof Urinals and Buried Panties, Oh My! Here Are the Winners of the 2026 Ig Nobel Prizes

The awards are an unaffiliated spoof of the Nobel Prizes. They highlight research achievements that are surprising and silly-sounding—but also make people think

Since calorie restriction is known to slow aging, researchers wanted to know if GLP-1s—which curb appetite—could do the same.

GLP-1 Weight-Loss Drugs Can Slow Aging and Extend Life Span, Mouse Study Suggests

Older female mice—equivalent in age to 60-year-old women—given daily injections of the active ingredient in Ozempic lived about 12 percent longer than animals that didn’t receive the drug

In loud conditions, a tokay gecko adjusts its call, which is typically used to find a mate or defend territory.

Reptiles Make a Surprising Amount of Noise. Here’s What Those Sounds Might Mean, From Pops to Hoots to Bellows

Scientists are realizing that turtles, lizards and crocodilians communicate vocally more than they once thought

Alfie and Bailey, the first dogs whose genes were edited so they lack the allergy-inducing protein Can f 1.

Allergic to Dogs? These Gene-Edited Beagles Could Pave the Way to Your Dream Canine Companion That Won’t Trigger Sniffles

Geneticists altered Alfie and Bailey’s DNA so that they don’t produce a major allergen. However, canines like them are not currently commercially available, and some experts express ethical concerns about altering the animals’ genes

An artist's interpretation of what Chosha praecursor might have looked like while splitting its time between water and land 324 million years ago in what is now Texas.

This Ancient Insect Had 24 Legs—and Could Help Explain How the Ancestors of Modern-Day Bugs Took Over the Land

A previously undescribed critter that lived 324 million years ago appears to have been a transitional species that lived between land and sea. It could help researchers fill an 80-million-year gap in the fossil record of how crustaceans evolved into insects

A male Cope's gray treefrog is smaller than a female and attaches to her back as she looks for a spot to lay eggs.

Female Treefrogs Experience ‘Choice Overload’ Amid Too Many Mating Calls From Males

Faced with a chorus of potential mates, female Cope’s gray treefrogs may be overwhelmed by the number of options and struggle to make a careful decision, a study suggests

Researchers observed bearded capuchins in Brazil eating birds (shown here), lizards, rodents, opossums, snakes and other small vertebrates.

When Fruit Is Scarce, These Monkeys Hunt Animals. The Behavior May Offer Clues About the Origins of Humans’ Meat-Eating Habits

The bearded capuchins of northeastern Brazil typically eat plant-based foods, but they turn to small vertebrates when those sources are limited. Our ancestors may have done the same, eventually allowing predatory behaviors to be more frequently passed on in our lineage

The studied species, brown-lipped snails, are native to Europe.

Snails Can Make Their Slime Sticky, Slippery, Foamy or Hard Depending on Their Needs. Here’s How They Tweak Their Multipurpose Mucus

The critters can alter the proportions of calcium and collagen in the versatile substance, which changes the protein structure. The different textures can help snails glide, climb or protect themselves

Illustration of the La Brea Tar Pit's ancient habitat, with the newly discovered toad species (center and right) and the Mexican burrowing toad (bottom)

Paleontologists Discover a New Species of Ice Age Toad at the La Brea Tar Pits, Offering Clues About the Area’s Ancient Climate

The fossilized remains, recovered in 1929, were part of La Brea’s relatively understudied amphibian collection. Since toads are cold-blooded and sensitive to environmental changes, the discovery can help researchers piece together past climate conditions

An American bullfrog, which is the largest frog species in North America

This Deadly Shellfish Poisoning Has No Antidote. A Protein Found in American Bullfrogs Could Change That

A study in mice found that a protein called saxiphilin acts like a sponge against a deadly toxin produced by algal blooms. The harmful agent, which accumulates in certain seafood, can cause a life-threatening illness called paralytic shellfish poisoning

Marmots can spend up to eight months in hibernation, so packing on the pounds during the short alpine summer is essential to their survival.

Cast Your Vote for the Chunkiest Alpine Rodent During Colorado’s First-Ever Fat Marmot Week

The inaugural competition puts eight yellow-bellied marmots head-to-head while shining a light on the science behind their seasonal weight gain and survival at high elevations

A long-clawed shrew seen in northern Japan

These Tiny Shrews Grow Bigger Snouts and Shrink Their Brains to Survive Harsh Winters, Study Suggests

Scientists have long known that some small mammals reduce their brain size during cold months and regrow them in the spring. Long-clawed shrews from Hokkaido, Japan, seem to follow that pattern—while their noses surprisingly do the opposite

The team combined two operating tables to hold the snake's lengthy 110-pound body.

This 15-Foot Python Is the First Known Snake to Receive Electrochemotherapy for Cancer. Now, She’s Officially Free of the Disease

The pioneering treatment makes it easier for traditional chemotherapy drugs to penetrate cancer cells. After the procedure, the reptile, named Jodie Foster, made a speedy recovery

After being closed to the public for more than 80 years, the Nature and Us gallery, photographed here in 1911, will reopen in September.

Closed to the Public Since WWII, a ‘Hidden’ Gallery at London’s Natural History Museum Opens Its Doors Once Again

Animal skeletons, Neolithic tools and pop culture memorabilia are among the dozens of objects to be displayed in the reopened “Nature and Us” exhibition

Scientists used Evo, an AI tool that can suggest genome designs, to design new viruses. 

Scientists Used A.I. to Design New Viruses. The Technology Could Be a Boon for Medicine, but Experts Worry About Harmful Pathogens

The findings represent the first genomes, or complete genetic instruction books, designed entirely with generative A.I. The resulting viruses attack only bacteria, which could one day help overcome the problem of antibiotic-resistant microbes

Narwhals live in the North Atlantic and Arctic Oceans.

Narwhals Sport Iconic Straight, Spiraled Tusks. Scientists Just Uncovered Some of the Eye-Catching Feature’s Structural Secrets

The Arctic whales are the only known animals with straight tusks, and ones that consistently twist to the left. New research reveals that the inner layer twists to the right and that the opposing spirals provide strength and help the tusks grow straight

Scientists have discovered more than 4,400 ancient preserved human brains, some of which are 12,000 years old.

Archaeologists Have Found Thousands of Intact Ancient Human Brains. Scientists Say They’ve Figured Out Why the Organs Don’t Always Rot

Under the right conditions—wet and oxygen-deprived—the same chemical reactions that cause tissue to break down can instead have the opposite effect, according to a new study

A swarm of Chaoborus edulis flies over Lake Malawi

Why Don’t Insects Live in the Ocean? Scientists Just Ruled Out One Possible Explanation Thanks to Deep-Diving Fly Larvae

Researchers thought that insects might not live there because their respiratory systems would implode from water pressure. But certain fly larvae in East Africa make daily trips toward the bottom of Lake Malawi with the help of strong air sacs that contain a stretchy protein

Researchers made the discovery while studying the California two-spot octopus.

Why Are Some Octopuses So Smart? The Answer Might Lie in a Never-Before-Seen Mutation That Helps Them Accurately Build Proteins

Scientists discovered a strange feature in certain octopuses’ ribosomal RNA, molecules that create a 3D scaffold for cellular protein factories. It was found only in shallow-water creatures that have expanded nervous systems and can do complex behaviors

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