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Evolution

Amud 7 was discovered in a cave in Israel in 1992.

Neanderthal Kids Grew Up So Fast—at Least Compared With Their Human Peers—Thanks to Genetic Adaptations to Their Environment

Scientists think Neanderthal children may have had faster growth rates because larger bodies tend to retain heat more effectively than smaller ones

The reseachers investigated preserved specimens kept at museums, like this Bufoceratias wedli from the Field Museum in Chicago.

Anglerfish Are Known for Their Built-in Fishing Rods. New Research Sheds Light on How These Lures Evolved in the Strange Creatures

A new study suggests the odd appendages first appeared in the fish’s ancestors around 72 million years ago. Today, females might use them not only to attract prey but also to communicate with potential mates

Mountains in Montana’s Makoshika State Park, where some of the Hell Creek Formation lies.

250 Places to Celebrate America

The Hell Creek Formation Is North America’s Legendary Boneyard. See the Top Five Discoveries Found in the Iconic Fossil Bed

From preserved plants to T. rex, the material found in these Late Cretaceous rocks has resulted in countless breakthroughs for paleontologists

An artist's rendition of Captorhinus in its death pose

This Nearly 300-Million-Year-Old Mummified Reptile Reveals the Evolutionary Origins of How We Breathe

Unusually well-preserved fossils have provided the earliest known evidence of a land vertebrate that could pump air in and out of its chest using muscles between the ribs—the same strategy used by modern mammals, reptiles and birds

Chimpanzees from the Western group attacking members of the Central group in 2019.

These Wild Chimps Have Been Fighting in a ‘Civil War’ for Nearly a Decade. It’s the Bloodiest Split Ever Seen Among Their Kind

The Ngogo chimpanzees in Uganda have divided themselves into two main factions, and dozens of deaths have been recorded since the split in 2018. A new study details the unprecedented violence, which could shed light on the evolutionary underpinnings of human warfare

The researchers primarily studied California two-spot octopuses.

Octopus Sex Just Got Weirder. In Addition to Depositing Sperm, Males’ Specialized Mating Arm Can ‘Taste’ Female Hormones

The hectocotylus is both a reproductive organ and a sensory organ, a rare combination in animals, new research suggests

An illustration of the fossils' environment around 539 million to 554 million years ago

Cool Finds

New Fossils Discovered in China Hint That Complex Life Evolved Millions of Years Earlier Than Scientists Thought

The assemblage suggests that the ancestors of some of today’s animal groups may have arisen before the famed Cambrian explosion

Megachelicerax cousteaui and a close-up of one of its pincers, or chelicerae

This 500-Million-Year-Old Fossil of a Claw-Bearing Predator Uncovers the Origins of Spiders, Scorpions and Other Arthropods

A new analysis of a specimen found more than 40 years ago reveals the oldest known chelicerate, defined by its pair of pincer-like appendages

An artist’s rendition of Masripithecus moghraensis  

Cool Finds

These 17-Million-Year-Old Fossils Could Rewrite the Evolutionary Tree of Apes—Including Humans

Jawbone fragments and teeth from a previously unknown species hint that the evolution of modern apes occurred in what’s now North Africa or the Arabian Peninsula, rather than in East Africa

An artist's depiction of dogs living alongside humans at a site in Turkey 15,800 years ago

Scientists Identify the World’s First Known Dog, Which Pushes Back the Animals’ Genetic Record by About 5,000 Years

Two new ancient DNA studies suggest that domesticated dogs were widespread in western Eurasia more than 14,000 years ago

Participants listened to pairs of mating calls made by numerous creatures, including male green treefrogs.

Humans and Animals Often Like the Same Mating Calls, Supporting a 150-Year-Old Observation by Charles Darwin

New research by Smithsonian scientists suggests that preferences for certain sounds might be evolutionarily conserved

Like Astrophage, the solar-radiation-eating microbes in Andy Weir’s novel Project Hail Mary, some sea slugs can derive energy from sunlight.

These Sea Slugs Can ‘Eat’ Sunlight—but They’re No Astrophage. Here’s How the ‘Project Hail Mary’ Antagonist Has a Real-Life Analogue in Earth’s Oceans

By snatching chloroplasts from algae, animals called sacoglossans produce their own energy through photosynthesis

The shin bone was found in New Mexico.

This 74-Million-Year-Old Dinosaur Bone May Have Belonged to a Surprisingly Large Ancestor of Tyrannosaurus Rex

The massive reptile may have weighed more than 4.5 tons and been 35 feet long—much bigger than its related peers at the time

The fire-loving fungus Geopyxis, seen here in 2022, after California’s Caldor Fire, has distinctive brown cups with white rims.

These Charcoal-Eating Fungi Flourish After Fires. Uncovering Their Genetic Secrets Could Help Rebuild Burned Ecosystems

Mycologists cultivated fungi they found in post-wildfire landscapes to understand the evolutionary traits behind their ability to thrive in the wake of flames

A blue morpho butterfly, native to the tropical forests of Central and South America

Most Insect Species Call the Tropics Home. But Climate Change Is Pushing Many of the Critters There to Their Heat Limits

Insects in the lowlands will have an especially hard time with rising temperatures, a new study suggests

Anopheles mosquitoes are major malaria vectors.

Mosquitoes Have Been Biting Humans for More Than One Million Years

A new study suggests that the deadly insects evolved their taste for human blood much earlier than previously thought, around when Homo erectus migrated into Southeast Asia

Mature adults have just one verticle stripe behind their eyes.

These Clownfish Lose Their Baby Stripes in Response to Peer Pressure, New Research Suggests

Tomato clownfish perform a dramatic underwater wardrobe change based on the social dynamics of their environment

A reconstruction of a Neanderthal man at the Natural History Museum in London.

Neanderthal Men May Have Often Hooked Up With Human Women Thousands of Years Ago

Most people alive today carry a little Neanderthal DNA—except in a few spots. A new study might explain why

Researchers collected chimp urine from leaves and puddles on the forest floor in Uganda.

Wild Chimpanzees Love to Eat Boozy Fruit. Scientists Say the Proof Is in Their Pee

The work further hints that humans may have inherited our penchant for alcohol from our ape ancestors

The study focused on Kanzi, a language-trained bonobo who died in March 2025 at the age of 44.

Can Apes Play Pretend? What Scientists Learned From Having Imaginary ‘Tea Parties’ With Kanzi the Bonobo

A new study provides evidence for imagination in a captive-raised, English language-trained animal

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