Biology

When the queen dies, Jerdon's jumping ants duel to select their next leader.

A Single Protein Can Switch Some Ants From a Worker Into a Queen

Changing the expression of a one protein in the brains of Jerdon's jumping ants is enough to launch the biological transition

The 17-pound spud could earn the top spot in the Guiness Book of World Records.

At 17 Pounds, 'Doug' the Ugly Potato Could Be the World’s Biggest Spud

Colin and Donna Craig-Brown of New Zealand named the giant tuber and have been taking it for walks

Real guppies respond to Robofish—a 3D-printed plastic model with a vaguely realistic paint job—as if it were a real schoolmate. Researchers used different-sized Robofish to show that guppy schools tend to follow larger fish.

How Scientists Are Using Robotic Animals to Learn About Real Ones

Biomimetic bots can teach researchers a lot about how creatures interact in the natural world

Researchers are hoping to decipher the communications of sperm whales.

Could We Chat With Whales?

An ambitious project is attempting to interpret sperm whale clicks with artificial intelligence, then talk back to them

According to the American Library Association, Scary Stories were the most challenged books between 1990 and 1999.

Why 'Scary Stories to Tell in the Dark' Frightened So Many Parents in the 1990s

Launched 40 years ago, Alvin Schwartz's spooky series pitted school administrators against PTO members pleading to ban the books

Every summer, brown bears descend on Brooks River to pack on the pounds needed to survive their winter hibernation. 

Meet the Bodaciously Bulky Bears of Fat Bear Week 2021

The annual tournament celebrates Alaska’s chunkiest brown bears and their summer-long salmon feast

This year's overall winner Laurent Ballesta spent more than 3,000 hours trying to capture his stunning undersea image of mating groupers.

Ten Breathtaking Images From the 2021 Nature Wildlife Photographer of the Year Awards

The annual awards tell the story of our planet's creatures and the threats they face

Increased immunity from vaccines and previous infections could be a reason behind the drop in cases of "Covid toes." (Pictured: Nurse Sandra Lindsay—the first person to receive vaccine in the USA on December 14, 2020— receives COVID-19 Pfizer vaccine booster in New York on October 6, 2021.)

Powerful Immune System Response May Be Behind 'Covid Toes'

A new study brings doctors closer to understanding the mysterious frostbite-like lesions on patients' toes and fingers

The embryo of a small-spotted catshark, safe inside its egg case, is being raised at the aquarium Oceanogràfic València by Associació Lamna, a nonprofit that promotes shark conservation and research. At this stage, the young shark's gills are still external and it is growing from the sustenance provided in the yolk, visible at the bottom of the egg case.

Biologists Rescue Unborn Baby Sharks at Fish Markets

Scientists are collecting egg cases from recently caught pregnant sharks, raising the babies and releasing them into the wild

The Nobel committee announced the winners of the 2021 Nobel Prize in Physiology or Medicine, David Julius and Ardem Patapoutian, earlier today.

Scientists Studied Spicy Chili Peppers and Cool Menthol for Their Nobel Prize–Winning Research on Heat and Touch

Their independent discoveries answer fundamental questions about how we sense our environment and could lead to breakthrough pain relief treatments

Some conservationists have held out hope for species like the ivory-billed woodpecker, which was last spotted in 1944.

Ivory-Billed Woodpecker and 22 Other Species Declared Extinct

Many organisms included in the latest declaration were feared to be lost long before the Endangered Species Act of 1973 was first passed

Denver Bronco player David Bruton grabs his head on the field after a reported concussion. Many patients with such head injuries suffer symptoms months after their diagnosis, even though their brains look healthy on CT scans.

This Molecule Could Be the Key to Understanding Why Concussions Have Such Long-Term Effects

Neuroscientists identified the molecule that persists in the brain—and showed how to disarm it in mice

Scientists analyzed millions of eBird observations to see how bird abundance changed during the early months of the pandemic.

Birds Flocked to Pandemic-Silenced Cities

From ruby-throated hummingbirds to bald eagles, a new study finds our feathered friends thrived in quieter urban habitats

Ultrasound of a 4-month-old fetus

A Brief History of the Sonogram

In the mid-1950s, a Scottish obstetrician became the first to apply ultrasound technology to a pregnant human abdomen

Resurrecting the Sublime recreates the scent of Hibiscadelphus wilderianus, which went extinct in 1912.

What Do These Extinct Plants Smell Like?

A multidisciplinary collaboration resurrects three types of flora lost due to 20th-century colonialism

Heavy metal-fortified mandibles help leafcutter ants save energy and muscle mass.

Heavy Metals Give Ants a Powerful Bite

A combination of metal atoms and natural proteins is the secret behind the super-strong jaws, claws and stingers of some tiny animals

Around 20 percent of female white-necked jacobins have evolved to share the vibrant plumage characteristic of males.

Female Hummingbirds Masquerade as Males to Avoid Harassment

One-fifth of female white-necked jacobins sport flashy male-like plumage, which may help them access more food

The giant tortoise clumsily stalked and ate a lesser noddy tern chick, raising questions about their herbivorous diet.

Giant Tortoise Stuns Scientists by Eating a Baby Bird

In a first, researchers in the Seychelles document the large reptile stalking and devouring a chick

A new study of western diamondback rattlesnakes reveals that they abruptly shift to a high-frequency rattle as danger approaches.

Rattlesnakes Fool Humans Into Thinking They're Nearby With This Sound-Warping Trick

A new study reveals the snakes change the speed of their rattles to appear closer than they are

A study of two dozen common cuttlefish reveals they can recall specific details regardless of age.

Unlike Humans, Cuttlefish Have Sharp Memories Even in Old Age

The cephalopods remember when, where and what they ate until days before death

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