Brian Handwerk

Brian Handwerk is a science correspondent based in Amherst, New Hampshire.

Tourists watch leatherback sea turtle hatchlings crawl toward the sea under the glow of less intrusive red lights. Artificial white lighting can attract the hatchlings away from the ocean, where predators may be lurking.

From Prolonging Wallaby Pregnancies to Disorienting Hatchling Turtles, 11 Ways Artificial Lights Affect Animals

From the busy cities to ocean waters, our need to illuminate the world has had some strange and tragic consequences

Technological advances have changed Olympic sports—including fencing, sprinting, distance running and pole vaulting.

From Sleek Swimsuits to Specialized Running Shoes, These Five Innovations Transformed the Olympics

Technology has advanced sports including fencing and pole vaulting

Arsenic tests for the Lydia Sherman trial of 1872

What a 100-Year-Old Lie Detector and 150-Year-Old Arsenic Tests Tell Us About Forensic Science Today

An exhibition at the National Museum of American History examines how humans influence and judge investigation techniques

Monarchs, some frogs and other animals feed on toxic plants or bugs for protection

A Poisonous Diet Gives These Animals Their Own Toxic Defense

From monarchs to sea slugs, various creatures consume chemicals that keep predators at bay

A variety of plants and animals go through periods where they are dormant or in the dark.

Move Over, Cicadas: These Living Things ‘Go Dark’ For a Long Time, Too

From frogs to orchids, many organisms go dormant or move underground for lengthy stints

The remains of a dog buried next to a baby

These Ancient Celts Were Buried With Their Animals

Some remains found in the 2,000-year-old graves were likely food offerings, but others may have been much-loved companions

Fabrizio Fidati, a 57-year-old amputee, uses the MiniTouch device with his prosthetic to accurately sort cubes of different temperatures.

In a First, a Prosthetic Limb Can Sense Temperature Like a Living Hand

The advance may help users feel a greater sense of human connection through touch

A rosy-faced lovebird

These Parrots Use Their Beaks to Swing Across Branches Like Monkeys

Scientists have documented the unusual movement, dubbed "beakiation," for the first time

A female elephant seal rests with her pup on the California coast. Pups in this population spend more days fattening up on mother’s milk than in southern populations on the Kerguelen Islands.

Inside Elephant Seal Pups' Race to the Depths

While northern pups dive right in, their southern cousins take their time

While they chew their cud, reindeer brains shift into a state of non-REM sleep.

Reindeer Sleep and Eat Simultaneously, Saving Precious Time in the Short Arctic Summer

While the animals chew their cud, they also enter a state of rest

A Gorgosaurus consumes its prey.

Amazing Fossil Preserves Teenage Tyrannosaur’s Last Meal

Stomach contents from a juvenile Gorgosaurus reveal it feasted on small, bird-like species 75 million years ago

Chinstrap penguins incubate eggs.

Chinstrap Penguins Sleep Over 10,000 Times a Day—for Just Four Seconds at a Time

The amazing microsleep strategy may be an adaptation to group living and lurking predators in a harsh Antarctic environment

Contact between Europeans and Native Americans is recorded in the DNA of head lice.

When Did Humans Arrive in the Americas? Lice Help Answer That Head-Scratcher

A new analysis of the annoying critters shows when groups from Asia and Europe hitched rides on human hair and skin to arrive on our continent

A group of chimpanzees at elevation listen for rivals.

While Some Chimps Go Low, Others Go High to Avoid a Dangerous Fight

Primate groups climb to elevation to scout out rivals and steer clear of clashes

An experimental replica of shell beads with Natufian red organic colorant made from the roots of Rubiaceae plants

Archaeologists Find the First Red Paint Made From Plants

Hunter-gatherers cooked up the alluring pigment in the Eastern Mediterranean 15,000 years ago

A shot of Hurricane Ian, taken from the International Space Station on September 28, 2022

Atlantic Hurricanes Are Getting More Dangerous, More Quickly

If such changes are in response to climate change, the future may feature more sudden, daunting storms

An illustration of the Homo erectus child with her mother in the Ethiopian highlands, two million years ago

Two Million Years Ago, This Homo Erectus Lived the High Life

Dating of a child's fossilized jaw and teeth suggest our relatives lived at altitude earlier than once thought

Fossilized footprints in White Sands National Park

North America's Oldest Known Footprints Point to Earlier Human Arrival to the Continent

New dating methods have added more evidence that these fossils date to 23,000 years ago, pushing back migration to the Americas by thousands of years

This statue of Christopher Columbus resides at Columbus Circle in front of Union Station in Washington, D.C. 

Breaking Down the United States' Historical Obsession With Christopher Columbus

Columbus became Columbus in the American Revolution—when the colonials sought out an origin story that didn’t involve the British

Artistic reconstruction of a group of hominins in direct competition for carrion with a hyena

One Million Years Ago, Our Human Relatives May Have Challenged Giant Hyenas for Carcasses

Groups of hominins might have successfully scavenged large kills, new modeling finds

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