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Animals

Brazil experienced its first urban outbreak of yellow fever in decades from late 2016 through 2018. During that time, people flocked to health centers to get a vaccine, which can provide lifelong protection.

Brazil’s First Urban Yellow Fever Outbreak in Nearly a Century May Have Been Fueled by a Surprising Culprit

Extremely wet conditions are known to help spread mosquito-borne diseases like yellow fever. But based on computer simulations, researchers suspect that a severe drought may have contributed to the South American country’s recent deadly epidemic

A tufted gray langur strokes a grizzled giant squirrel in Yala National Park, Sri Lanka.

Do Monkeys Keep Pets? Study Finds Widespread Primate Interactions With Other Animal Species, From Mice to Deer

This social behavior might reveal the evolutionary roots of traits that underlie pet-keeping in humans, scientists say, from caregiving to tolerance and curiosity. But it’s not the same as a person keeping a cat or a dog

An illustration of Chiniquodon theotonicus, including a pregnant female and a nursing female

When Did Animals Start Giving Birth to Live Young? This 236-Million-Year-Old Fossil Might Rewrite Mammals’ Evolutionary History

A bone feature found in a mammal ancestor hints that the creature was relatively large as a newborn, more in line with the size of a creature birthed live than hatched from an egg. Still, it provides only indirect evidence

A harbor porpoise surfaces near the Golden Gate Bridge.

Marine Biologists Solved a Wildlife Mystery From the Walkway of the Golden Gate Bridge: How the Harbor Porpoise Mates

The dolphin-like marine mammals returned to San Francisco Bay in 2008 after a decades-long absence from the area. Scientists took the rare opportunity to closely observe their behavior, and what they uncovered might help at-risk porpoise populations

The belly is one of the most ticklish body parts across analyzed cultures.

From Armpits to Feet, Our Ticklish Hot Spots Are Surprisingly Universal. The Finding Offers Clues About the Sensation’s Evolutionary Origins

A new study probes the basics of gargalesis, a poorly understood type of tickling caused by firm, repetitive touches that typically elicits laughter and squirming

Mountain lions change how deer behave, potentially preventing deadly deer-vehicle accidents.

Pumas Might Be Making Your Drive Home Safer. When the Predators Are Around, Deer Tend to Avoid Roads, Preventing Some Collisions

In Washington’s Olympic Peninsula, the wild cats’ presence corresponded with a 67 percent drop in the likelihood of a deer-vehicle crash and a 76 percent overall decline in the number of wrecks during a five-year period, according to a new study

Screenshot of Jackie from a livestream in April

Jackie the Bald Eagle, Who Captured Hearts Around the World Via Livestream, Has Died After Battling a Mysterious Illness

A raptor center in California had been caring for the animal since mid-July, after she had an altercation with two young eagles. But she had probably been sick long before then

A koala, Phascolarctos cinereus, with her babies at Australia Zoo Wildlife Hospital, 2011

This Amazing Archive of Animal Photography Reveals 18,000 Species and Counting. Here’s How Joel Sartore Built His ‘Photo Ark’

For 20 years, the National Geographic photographer has showcased Earth’s animals in a series of striking images that make even the tiniest creatures look immense

A sculpture of a giant lobster disguised as a column, made by pop artist Philip Colbert, stands in Pompeii

First a Volcanic Eruption, Now a Crustacean Invasion? See the Giant Lobsters Taking Over the Ancient City of Pompeii

A pop art installation featuring more than 30 sculptures from artist Philip Colbert is the first contemporary sculpture exhibition to land in Pompeii in three decades

Nine Lives eluded capture for three years.

Notorious Feral Cat That Feasted on Rare New Zealand Ducks Captured After Three-Year Hunt

The gray tabby, known as Nine Lives because it eluded capture so many times, had devastated efforts by conservationists to reintroduce the birds to the wild

Sperm whales seem to communicate differently in the presence of underwater shipping sounds.

Sperm Whales Seem to Change Their Calls When Ships Are Near, Highlighting the Implications of Underwater Noise Pollution

Several of the huge cetaceans living in the eastern Caribbean Sea shortened the intervals between their clicks and used one click pattern more than another when vessels were around, according to a new study

Researchers tested the superworms' skeleton-cleaning abilities by letting them loose on a variety of animal skeletons, including those of a rook, an alligator gar, a Eurasian eagle owl, a gray wolf and a wild cat.

Flesh-Eating ‘Superworms’ Could Become a New Skeleton-Cleaning Crew for Museum and Research Specimens

A new study hints that the critters would be a good alternative to traditional methods used to remove flesh from bones, including dermestid beetles, chemical treatments and boiling, which can cause damage or be time-consuming

Nick Cave in his studio with objects featured in the "Mammoth" exhibition

How Artist Nick Cave Memorializes His Ancestors Through ‘Mammoth’ Work

An exhibition at the Smithsonian American Art Museum spotlights how everyday objects can serve as the foundation for artistic expression

South America was home to the marsupial sabertooth, illustrated on the left, while North America was home to the smilodon, on the right. The species competed with each other after the Panamanian land bridge connected North and South America.

Ancient North American Mammals May Have Gathered in Mexico and Diversified Before Moving to South America, Priming Them to Thrive There

An analysis of fossils from the country hints that animals from the north stayed in a “holding pen” between seven million and ten million years ago. The timeline might help explain why so many South American mammals have North American ancestry, but not vice versa

The dominant female wolf of Yellowstone's Canyon pack on February 26, 2015

Rooted in the American West: Food, History and Culture

Yellowstone Is Among the World’s Best Places to See Wild Wolves. Here’s the Story of the Animal Called Both ‘Public Enemy’ and Cultural Icon

A century ago, resident wolves were eliminated from the park. In 1995, biologists brought them back, marking a historic reintroduction of a top carnivore

This illustration shows an ichthyosaur biting a pterosaur, with a pliosaur preparing to attack from below.

Rare Fossil Reveals a Three-Tier Food Chain Frozen in Time: a Pterosaur Eaten by an Ichthyosaur Eaten by a Pliosaur

Uncovered in part by amateur fossil hunters in Australia, the fossil preserves a unique look at prehistoric predatory dynamics

A collection of mammoth bones in a pit in Austria

Ice Age Humans Mostly Killed Female Woolly Mammoths, Suggests Ancient DNA

After analyzing more than 500 mammoth bones, researchers found that ancient humans disproportionately hunted female mammoths for reasons still unknown

A blacktip shark, above, looks and behaves like a spinner shark. Scientists are tracking spinner sharks to get a clearer idea of the species' whereabouts.

These Shark Look-Alikes Have Long Confounded Fishers and Scientists on the East Coast. Tracking Where They Migrate Could Help Clear the Confusion

Researchers are tagging and tracking spinner sharks to map out their geographic distribution, because they’ve seen that the range of the very similar blacktip shark has shifted

A catfish with melanoma, a kind of skin cancer

A Strange, Never-Before-Seen Cancer Seems to Be Spreading Among Catfish in a New England Lake

More than a decade ago, fishers and biologists noticed jet-black tumors on the skin of brown bullhead catfish in Lake Memphremagog. Genetic testing hints that they are caused by the first contagious cancer ever documented in fish

Scientists propose that most creatures died within a couple of hours of the asteroid strike, not because of the following years-long global winter.

The Dino-Killing Asteroid Strike May Have Transformed Our Planet Into a Hellish Inferno, Charbroiling Most Creatures Within Hours

Based on computer simulations and geologic evidence, scientists propose that the deadly event may have caused global wildfires and trapped heat in the atmosphere, roasting any animal that couldn’t take cover fast enough

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