Skip to main content

Subscribe to Smithsonian magazine and get a FREE tote.

Primates

The Burtele foot, discovered in 2009

The Human Relative Who Owned This 3.4-Million-Year-Old Foot May Have Belonged to a Species That Lived Alongside Lucy

Newfound fossils in modern-day Ethiopia suggest that the mysterious foot belonged to a recently named species, Australopithecus deyiremeda. The finding could alter the story of human evolution

Chimpanzees, like some other apes, kiss each other on the lips. 

How Did Humans End Up Smooching on the Lips? It May Have Started Out With a 21-Million-Year-Old Kiss

Our ancient primate relatives—including Neanderthals—may have enjoyed a nice peck on the lips. But researchers still don’t know why we do it

A population of black-and-white ruffed lemurs on Madagascar is experiencing changes in the cadence of its breeding, researchers say.

Lemurs Are Having a Mysterious ‘Baby Boom’ in Madagascar. Here’s Why That Might Not Be a Good Thing

Researchers are investigating a sudden spike in pregnancies in one black-and-white ruffed lemur population that might signal environmental stress to the mammals

Two chimpanzees sit in the Ngamba Island Chimpanzee Sanctuary in Uganda, where the study took place.

Chimpanzees Weigh Evidence to Make a Smart Choice, in a Process Resembling Human Rationality

When presented with multiple clues about the location of food, chimps revised their choices based only on stronger clues, indicating they were comparing the worth of pieces of information

These six keel-billed toucans were discovered bound and sedated in June by U.S. Customs and Border Protection officials. The Wildlife Confiscations Network helped find experts at qualified facilities to care for the birds.

Once Smuggled Animals Are Rescued, Law Enforcement Officers Call Her

As coordinator of the Wildlife Confiscations Network, Mandy Fischer helps match trafficked animals—from alligators to jaguars to baby monkeys—with sanctuaries and care facilities

The epigenetic clock is emerging as a wildlife conservation tool.

This ‘Clock’ Could Warn of Hidden Stresses to Animals, Offering a Long-Sought Signal That a Population Is Nearing Collapse

The epigenetic clock measures biological age and could help scientists assess the health of polar bears, dolphins, baboons and other threatened creatures “while recovery is still possible”

Jane Goodall visiting a chimpanzee rescue center in 2018 in Entebbe, Uganda

Jane Goodall, Legendary Primatologist and Anthropologist, Dies at 91

She was considered the world’s leading expert on chimpanzees and was renowned for her global conservation efforts

Chimpanzees in Uganda's Kibale National Park love eating figs, which scientists found had the highest level of alcohol at the site.

Chimps Consume the Equivalent of 2.5 Alcoholic Drinks per Day by Eating Fermented Fruit, Study Finds

Scientists report that chimpanzees consume about 14 grams of alcohol daily and suggest the result might help explain humans’ interest in booze

Many rodents have nails on their thumbs and claws on the rest of their fingers. A new study suggests this trait might have been key to their world domination.

Rodents Conquered the World With the Help of Their Thumbnails, Study Suggests

The trait might have given rodents greater manual dexterity, allowing them to access new foods, such as nuts

Five-year-old Segi, rescued in 2021, learns how to climb at “jungle school,” run by the Borneo Orangutan Survival Foundation.

An Orangutan Sanctuary in Borneo Is Giving the Endangered Primates a Second Chance, Just When They Need It Most

The critically endangered species gets a helping hand from an Indonesian facility as the island’s human population is about to explode

Researchers find that long thumbs in primates are consistently associated with big brains.

This Is What Our Thumbs Say About Our Brains, in a Pattern That Holds True for Other Primates

Researchers have found a link between long thumbs and big brains, suggesting the two features evolved together

Two adult female mountain gorillas rest with one of their infants.

Female Gorillas Form Ties That Bind, Helping Them Join New Social Groups

A new study finds that when female mountain gorillas move to a new crowd, they look for females they’ve already met

Red-shanked doucs are adept communicators, growling with a fixed stare when they’re threatened, or squealing harshly and slapping tree branches when they’re in distress or startled.

This Majestic Monkey Has Become a Beloved Neighbor for Millions in Vietnam

For the critically endangered red-shanked douc, proximity to an urban center has had surprising benefits

A howler monkey infant, only a few days old, clings to a subadult white-faced capuchin monkey as it uses tools.

Capuchin Monkeys Caught on Camera ‘Abducting’ Baby Howler Monkeys in a Strange Tradition Seen for the First Time

Scientists on Panama’s Jicarón Island were mystified by photos and videos of young male capuchins carrying howler monkeys on their backs for days at a time

A new study suggests chimpanzees don't just perform self-care—in some cases, they look out for each other.

Chimpanzees Perform First Aid on Each Other, Study Finds, and It May Shed Light on the Evolution of Human Health Care

Researchers describe cases of chimps tending to others’ wounds, as well as a chimp that freed another from a snare

A new study finds chimpanzees drum against tree roots with rhythm, suggesting they share an evolutionary trait with humans passed down by a last common ancestor.

Researchers Discover That Chimps Drum Rhythmically, Suggesting Human Musicality Originated in Our Last Common Ancestor

Not only do chimpanzees maintain a rhythm while drumming on tree roots, but two subspecies use distinct tempos and techniques, according to a new study

Scientists analyzed more than 20 years of data on 164 wild mountain gorillas living in Volcanoes National Park in Rwanda.

For Mountain Gorillas, Being Social Comes With Both Benefits and Drawbacks, Study Suggests

A new analysis of wild gorillas in Rwanda indicates the effects of different social styles are dependent on context

Human wounds take longer to heal than the wounds of other mammals, researchers find. That could be because we have fewer hair follicles, and stem cells in hair follicles help regrow skin after an injury.

Human Evolution Traded Fur for Sweat Glands—and Now, Our Wounds Take Longer to Heal Than Those of Other Mammals

Even compared to chimpanzees, one of our closest relatives, humans’ scrapes and cuts tend to stick around for more than twice as long, new research suggests

Two juvenile bonobos embrace in Lola Ya Bonobo Santuary in the Democratic Republic of the Congo. New research suggests female bonobos form coalitions to gain or maintain power in their societies.

Female Bonobos Assert Their Dominance Over Males by Banding Together, New Study Suggests

Bonobos, which are among our closest living relatives, live in rare societies where females tend to outrank males, even though males are larger and stronger. Scientists compiled decades of observations to explain why

For the first time known to scientists, a team has documented chimps sharing alcoholic fruit.

Watch Wild Chimpanzees Share Alcoholic Fruit, a Behavior Just Captured on Video for the First Time

Though the reason behind this action is unclear, researchers suggest socially consuming alcohol may have offered evolutionary benefits to a common ancestor of both humans and chimps

Page 2 of 9