Behavioral Science News

February 28, 2026

Top Headlines

How the Body Really Ages: 7 Million Cells Mapped Across 21 Organs

Feb. 28, 2026 Scientists have built a massive cellular atlas showing how aging reshapes the body across 21 organs. Studying nearly 7 million cells, they found that aging starts earlier than expected and unfolds in a coordinated way throughout the body. About a ...

Flea and Tick Treatments for Dogs and Cats May Be Harming Wildlife

Feb. 22, 2026 Flea and tick medications trusted by pet owners worldwide may have an unexpected environmental cost. Scientists found that active ingredients from isoxazoline treatments pass into pet feces, exposing dung-feeding insects to toxic chemicals. These ...

Microplastics Have Reached Antarctica’s Only Native Insect

Feb. 16, 2026 Even Antarctica’s toughest native insect can’t escape the reach of plastic pollution. Scientists have discovered that Belgica antarctica — a tiny, rice-sized midge and the southernmost insect on Earth — is already ingesting microplastics in ...

Yellowstone Wolves May Not Have Transformed the National Park After All

Feb. 12, 2026 A new scientific review challenges the headline-grabbing claim that Yellowstone’s returning wolves triggered one of the strongest trophic cascades on Earth. Researchers found that the reported 1,500% surge in willow growth was based on circular ...

Forests Are Changing Fast and Scientists Are Deeply Concerned

Feb. 9, 2026 Forests around the world are quietly transforming, and not for the better. A massive global analysis of more than 31,000 tree species reveals that forests are becoming more uniform, increasingly dominated by fast-growing “sprinter” trees, while ...

These Bald Eagles Fly the Wrong Way Every Year and Stun Scientists

Dec. 11, 2025 Scientists tracking young Arizona Bald Eagles found that many migrate north during summer and fall, bucking the traditional southbound pattern of most birds. Their routes rely heavily on historic stopover lakes and rivers, and often extend deep into ...

Gut Molecule Shows Remarkable Anti-diabetes Power

Dec. 8, 2025 Researchers revealed that the microbial metabolite TMA can directly block the immune protein IRAK4, reducing inflammation and improving insulin sensitivity. The molecule counteracts damage caused by high-fat diets and even protects mice from sepsis. ...

Scientists Studied 47,000 Dogs on CBD and Found a Surprising Behavior Shift

Nov. 28, 2025 Data from over 47,000 dogs reveal that CBD is most often used in older pets with chronic health issues. Long-term CBD use was linked to reduced aggression, though other anxious behaviors didn’t improve. The trend was strongest among dogs whose ...

Scientists Reveal a Hidden Alarm System Inside Your Cells

Nov. 25, 2025 Ribosomes don’t just make proteins—they can sense when something’s wrong. When they collide, they send out stress signals that activate a molecule called ZAK. Researchers uncovered how ZAK recognizes these collisions and turns them into ...

A Tiny Worm Just Revealed a Big Secret About Living Longer

Nov. 14, 2025 Scientists studying aging found that sensory inputs like touch and smell can cancel out the lifespan-boosting effects of dietary restriction by suppressing the key longevity gene fmo-2. When overactivated, the gene makes worms oddly indifferent to ...

Why Women Live Longer Than Men, Explained by Evolution

Oct. 28, 2025 An international team of researchers led by scientists from the Max Planck Institute for Evolutionary Anthropology in Leipzig, working with 15 collaborators around the world, has conducted the most comprehensive study yet of lifespan differences ...

Insects Are Disappearing from the Last Places We Thought Were Safe

Sep. 23, 2025 A long-term study in Colorado reveals that insect populations are plummeting even in remote, undisturbed areas. Over two decades, flying insect abundance dropped by more than 70%, closely linked to rising summer temperatures. The results suggest ...

Latest Headlines

updated 12:10pm EST

Textbooks Challenged by New Discovery About How Cells Divide

Feb. 28, 2026 Scientists have uncovered a surprising new way that giant embryonic cells divide—without relying on the classic “purse-string” ring long thought essential for splitting a cell in two. Studying ...

This Ancient Animal Was One of the First to Eat Plants on Land

Feb. 11, 2026 Hundreds of millions of years ago, the first animals to crawl onto land were strict meat-eaters, even as plants had already taken over the landscape. Now scientists have uncovered a ...

How Gene Loss and Monogamy Built Termite Mega Societies

Jan. 31, 2026 Termites did not evolve complex societies by adding new genetic features. Instead, scientists found that they became more social by shedding genes tied to competition and independence. A shift to ...

Scientists Ranked Monogamy Across Mammals and Humans Stand out

Jan. 22, 2026 A new study suggests humans belong in an elite “league of monogamy,” ranking closer to beavers and meerkats than to chimpanzees. By comparing full and half siblings across species and human ...

Fewer Offspring, Longer Life: The Hidden Rule of Mammal Aging

Jan. 16, 2026 A large international study reveals that mammals tend to live longer when reproduction is suppressed. On average, lifespan increases by about 10 percent, though the reasons differ for males and ...

Scientists Replayed Evolution and Found a Surprise

Dec. 30, 2025 Environmental change doesn’t affect evolution in a single, predictable way. In large-scale computer simulations, scientists discovered that some fluctuating conditions help populations evolve ...

Why Evolution Rewarded Ants That Sacrificed Protection

Dec. 22, 2025 Some ants thrive by choosing numbers over strength. Instead of heavily protecting each worker, they invest fewer resources in individual armor and produce far more ants. Larger colonies then ...

From Biting Flies to Feathered Dinosaurs, Scientists Reveal 70 New Species

Dec. 19, 2025 Researchers announced over 70 new species in a single year, including bizarre insects, ancient dinosaurs, rare mammals, and deep-river fish. Many were found not in the wild, but in museum ...

Human Brains Light Up for Chimp Voices in a Way No One Expected

Dec. 10, 2025 Humans don’t just recognize each other’s voices—our brains also light up for the calls of chimpanzees, hinting at ancient communication roots shared with our closest primate relatives. ...

Fossil Brain Scans Show Pterosaurs Evolved Flight in a Flash

Dec. 9, 2025 Ancient pterosaurs may have taken to the skies far earlier and more explosively than birds, evolving flight at their very origin despite having relatively small brains. Using advanced CT imaging, ...

Doomed Ants Send a Final Scent to Save Their Colony

Dec. 3, 2025 Ant pupae that are fatally sick don’t hide their condition; instead, they release a special scent that warns the rest of the colony. This signal prompts worker ants to open the pupae’s cocoons ...

Scientists Reveal Kissing Began Millions of Years Before Humans

Nov. 21, 2025 Scientists have traced kissing back to early primates, suggesting it began long before humans evolved. Their analysis points to great apes and even Neanderthals sharing forms of kissing millions of ...

Nectar Wars Between Bumble Bees and Invasive Ants Drain the Hive

Nov. 13, 2025 Bumble bees battling invasive Argentine ants may win individual fights but ultimately lose valuable foraging time, putting pressure on colonies already strained by habitat loss, disease, and ...

A Fierce Crocodile Ancestor That Hunted Before Dinosaurs Has Been Found

Nov. 12, 2025 Scientists have identified a new crocodile precursor that looked deceptively dinosaur-like and hunted with speed and precision. Named Tainrakuasuchus bellator, the armored “warrior” lived 240 ...

Scientists Shocked as Bumblebees Learn to Read Simple “Morse Code”

Nov. 12, 2025 In a first-of-its-kind study, scientists found that bumblebees can tell the difference between short and long light flashes, much like recognizing Morse code. The insects learned which signal led to ...

Killer Whales Perfect a Ruthless Trick to Hunt Great White Sharks

Nov. 3, 2025 In the Gulf of California, a pod of orcas known as Moctezuma’s pod has developed a chillingly precise technique for hunting young great white sharks — flipping them upside down to paralyze and ...

Chimps Shock Scientists by Changing Their Minds With New Evidence

Nov. 16, 2025 Chimps may revise their beliefs in surprisingly human-like ways. Experiments showed they switched choices when presented with stronger clues, demonstrating flexible reasoning. Computational modeling ...

A Prehistoric Battle Just Rewrote T. Rex’s Story

Nov. 2, 2025 The debate over Nanotyrannus’ identity is finally over. A remarkably preserved fossil proves it was a mature species, not a teenage T. rex. This discovery rewrites how scientists understand ...

The Surprising Reason Bees Replace Their Queens

Nov. 22, 2025 Worker bees stage coordinated revolts when viral infections weaken their queen and lower her pheromone output. This disruption drives many of the queen failures that beekeepers struggle with today. ...

This Tiny Worm Uses Static Electricity to Hunt Flying Insects

Oct. 15, 2025 A parasitic worm uses static electricity to launch itself onto flying insects, a mechanism uncovered by physicists and biologists at Emory and Berkeley. By generating opposite charges, the worm and ...

After 25 Years, Scientists Solve the Bird-Eating Bat Mystery

Nov. 2, 2025 After decades of mystery, scientists have finally proven that Europe’s largest bat, the greater noctule, hunts and eats small songbirds mid-air—more than a kilometer above ground. Using tiny ...

Birds Around the World Share a Mysterious Warning Cry

Oct. 6, 2025 Birds across the globe independently evolved a shared warning call against parasites, blending instinct and learning in a remarkable evolutionary pattern. The finding offers a rare glimpse into how ...

This Flower Smells Like Dying Ants, and Flies Can’t Resist It

Sep. 25, 2025 Vincetoxicum nakaianum tricks flies into pollinating it by imitating the smell of ants attacked by spiders. Ko Mochizuki stumbled upon this finding when he noticed flies clustering around the flowers ...

Fish Love Songs Recorded for 12 Years Reveal a Surprising Shift

Sep. 23, 2025 By recording grouper grunts for 12 years, scientists discovered major shifts in how red hind spawn and compete. Courtship calls once dominated, but territorial sounds have surged, suggesting changes ...

Wild Chimps Consume More Alcohol Than Anyone Expected

Dec. 1, 2025 Chimpanzees naturally ingest surprising amounts of alcohol from ripe, fermenting fruit. Careful measurements show that their typical fruit diet can equal one to two human drinks each day. This ...

What Looks Like Dancing Is Actually a Bug’s Survival Trick

Oct. 3, 2025 The matador bug’s flamboyant leg-waving puzzled scientists for years, with early guesses pointing to courtship. But experiments revealed the waving is a defense tactic against predators. Related ...

Scientists Uncover the Secret to Orangutan Survival in the Trees

Aug. 30, 2025 Young orangutans master the art of building intricate treetop nests not by instinct alone, but by closely watching their mothers and peers. Researchers tracking wild Sumatran orangutans over 17 years ...

Spiders Turn Fireflies Into Glowing Traps

Aug. 28, 2025 In Taiwan’s forests, researchers discovered a clever hunting trick by the sheet web spider Psechrus clavis. Instead of immediately devouring captured fireflies, the spiders allow them to glow in ...

70-Million-Year-Old Crocodile Relative With Dinosaur-Crushing Jaws Found in Argentina

Aug. 29, 2025 Seventy million years ago, southern Patagonia was home to dinosaurs, turtles, and mammals—but also to a fierce crocodile-like predator. A newly discovered fossil, astonishingly well-preserved, ...

Scientists Just Found Hidden Parasitic Wasps Spreading Across the U. S.

Sep. 15, 2025 Researchers discovered two new parasitic wasp species living in the U.S., tracing their origins back to Europe and uncovering clues about how they spread. Their arrival raises fresh questions about ...