Trilobites

A fossil bed in the High Atlas Mountains of Morocco is allowing new insights into the anatomies of arthropods that lived a half-billion years ago.

A fatal fungal disease has devastated the world’s amphibians. But the fungus has a vulnerability: It cannot tolerate heat.

Researchers discovered painted ladies on a South American beach and then built a case that they started their journey in Europe or Africa.

There has long been anecdotal evidence of the wormy creatures taking to the air, but videos recorded in Madagascar at last prove the animals’ acrobatics.

Researchers analyzed a skull found in Montana of a plant-eating member of the ceratops family, finding distinct traits.

Researchers say the nearly mile-long swim was the longest by big cats ever recorded.

Computer simulations suggest that a collision with another planetary object early in Earth’s history may have provided the heat to set off plate tectonics.

An analysis of elephant calls using an artificial intelligence tool suggests that the animals may use and respond to individualized rumbles.

They build extensive burrow networks and don’t seem to mind when other woodland creatures use them as flameproof bunkers.

During a chaotic period some 50 million years ago, the strange deep-sea creatures left the ocean bottom and thrived by clamping onto their mates.

Cuts in the cranium, which is more than 4,000 years old, hint that people in the ancient civilization attempted to treat a scourge that persists today.

A genetic analysis of the German cockroach explained its rise in southern Asia millenniums ago, and how it eventually turned up in your kitchen.

Videos filmed by divers show that choking, blinding and sacrificing limbs are all in the cephalopods’ repertoire.

If spiders use their webs like a large external eardrum, researchers reasoned, perhaps spider silk could be the basis for a powerful listening device.

New research shows the “upside-down trees” originated in Madagascar and then caught a ride on ocean currents to reach mainland Africa and Australia.

The brittle star specimen suggests that the sea creatures have been splitting themselves in two to reproduce for more than 150 million years.

By sequencing an enormous amount of data, a group of hundreds of researchers has gained new insights into how flowers evolved on Earth.

Divers and marine biologists are getting a window into the lives of a red crustacean most often found in the guts of other species.

A science video maker in China couldn’t find a good explanation for why hot and cold water sound different, so he did his own research and published it.

Dice snakes found on an island in southeastern Europe fully commit themselves to the role of ex-reptile.

For the first time, scientists observed a primate in the wild treating a wound with a plant that has medicinal properties.

The scene ends badly, as you might imagine.

Indigenous rangers in Australia’s Western Desert got a rare close-up with the northern marsupial mole, which is tiny, light-colored and blind, and almost never comes to the surface.

A series of foot tracks in southeastern China points to the discovery of a giant velociraptor relative, paleontologists suggest in a new study.

A new study resets the timing for the emergence of bioluminescence back to millions of years earlier than previously thought.

Over time researchers have found fewer of the insects turning up in light traps, suggesting they may be less attracted to some kinds of light than they once were.

Ancient humans left behind numerous archaeological traces in the cavern, and scientists say there may be thousands more like it on the Arabian Peninsula to study.

When Ruby Reynolds and her father found a fossil on an English beach, they didn’t know it belonged to an 82-foot ichthyosaur that swam during the days of the dinosaurs.

An ascending jet’s contrail over Montreal added to the wonder of last Monday’s eclipse.

Extinct foxes and other animals were an important part of early South American communities, a new study has found.

The study could help identify wood from Russia, which has been banned by many countries because of the war.

These reptiles and their social networks are understudied, according to researchers applying scents to different snakes to assess their behavior.

A nearly 2,000-year-old stash pouch provides the first evidence of the intentional use of a powerful psychedelic plant in Western Europe during the Roman Era.

How do you design an app for a parrot? Consider games that are “made to be licked,” a new study suggests.

The observation suggests that seals join cobras, archerfish and other animals known to spit, although researchers can only speculate about the reason for the mammal’s expectoration.

Scientists never imagined that the blind cave salamanders called olms willingly left their caves. But at numerous aboveground springs, there they were.

A new study reveals that cicadas can discharge urine with far more force than their size would suggest. This spring’s output could be significant.

While the sentinel trees of Northern Lebanon may not be as old as some traditions hold, one tree might be more than 1,000 years old.

Amphibians called caecilians add cloacal secretions of a nutritious material similar to milk to their numerous quirks, according to a new study.

A green honeycreeper spotted on a farm in Colombia exhibits a rare biological phenomenon known as bilateral gynandromorphism.

The arachnids, which are not spiders, were thought to have only two eyes, compared with many more on spiders.

A new study argues that Perucetus, an ancient whale species, was certainly big, but not as big as today’s blue whales.

A study suggests that humans often misinterpret a pet’s signals; even purring doesn’t guarantee a contented cat.

In the Panamanian rainforest, scientists found the first known plant species to transform decaying tissue into a new source of nutrients.

Freezing water with salt or other impurities yields ice that is easier to loosen from a surface, according to a new study.

Unusual experiments on organs recovered from three carcasses suggest how baleen whales call out at sea.

Three studies have recently explored toe-tapping, which seems to have something to do with frogs preying on insects.

About 8,200 years ago, in one of the last places settled by humans, prehistoric peoples began painting comblike designs as the climate shifted.

Maybe frog and fungi are friends.

A team of scientists thinks the planet may have been thrust into its longest ice age because less gas leaked out of volcanoes.

In an unlikely act of altruism observed two years ago, a male elephant seal prevented a younger animal from drowning.

Scientists discovered a species off the Alabama coast that is part of group of mussels never before seen at such shallow depths.

The toilet brushlike specimen from a Canadian quarry hints at the evolutionary experiments that occurred during a 15-million-year gap in the fossil record.

What paleontologists long believed were long spines on the aptly named Alienacanthus turn out to be an extended lower jaw.

A study offers the latest evidence of the problem-solving prowess of the clever birds.

Scientists built a working model of an early winged dinosaur to test a hypothesis about how the appendages evolved.

Scientists find that male antechinuses, rodent-like animals from Australia, will forgo sleep for sex during their breeding season, after which they die.

Scientists studied how thresher sharks use “extreme yoga” to whip their tails at prey.

Researchers completed genomic research on carcasses of the largest animals that have ever lived to understand North Atlantic whale populations.

Researchers found that the slime eel, or hagfish, known for deluging predators with mucus, tripled the size of its genome hundreds of millions of years ago.

Researchers say the species they named Tyrannosaurus mcraeensis predated the dinosaur era’s great predator.

The specimen came from a 289 million-year-old fossil deposit and might offer clues to how skin evolved.

Fossil teeth reveal Gigantopithecus was doomed by a changing environment and an inflexible diet.

Scientists recently analyzed a Peruvian 10-cent piece with an unexplained origin.

New research is trying to remake the case that fossils known as Nanotyrannus were their own species, rather than a teenage Tyrannosaurus rex.

Fossils collected more than 150 years ago show that the techniques some creatures use for defensive curling have not changed in millions of years.

Goffin’s cockatoos, long known as adept tool users, are the first parrots found to alter their food by dipping it in water.

Scientists captured new imagery of atmospheric phenomena that occur during some lightning storms, offering clues into how they form.

A 75-million-year-old Gorgosaurus fossil is the first tyrannosaur skeleton ever found with a filled stomach.

With machine learning, scientists are trying to chemically define the murky concept of terroir. The models might be useful for detecting wine fraud.

The preserved insects, from a cache of Lebanese resin, appear to be male but have mouth parts that are found only on modern female mosquitoes.

Scientists found that dolphins have an ability to sense electric fields, which may help them hunt and navigate the seas.

Tiny crustaceans the size of sand grains sneeze up packets of glowing mucus to impress potential partners.

Deep-sea videos from around the world show how the whipnose anglerfish prefers to swim belly up.

This study has everything: jumping spiders; insects donning striped and solid patterns; and evolutionary lessons about predators and prey.

Shipboard experiments suggested that sediment from the exploitation of metals in the ocean could be harmful to marine life.

The success of wild striated caracaras in a test suggests that the intellects of more bird species may be underestimated.

Bats have long been known for unusual forms of sexual reproduction, and a new study adds another surprise to the behaviors of the winged mammals.

An analysis of nine species of tyrannosaurs documented the evolutionary forces that led to the dinosaur’s reign.

In the Cyclops Mountains in the Indonesian part of the island of New Guinea, Oxford scientists and local guides made a series of spectacular discoveries.