Evolution

A figure representing the Kayentatherium babies found with an adult specimen. They are the only known fossils of babies from an extinct mammal relative that lived during the Early Jurassic.

Weasel-Like Fossils Reveal Evolutionary Clues of the First Mammals

A protomammal known as <i>Kayentatherium</i> was discovered with 38 babies in 185-million-year-old rock

The unusual primate has baffled scientists since its discovery in 1920

DNA Analysis Offers Insights on Origins of Extinct Jamaican Monkey

The unusual creature had few teeth, rodent-like legs, a squat body and a slow-paced lifestyle

A new study has found that moths like the Antherina suraka, pictured here, may use their scales to avoid detection by bats.

Deaf Moths May Use Their ‘Fur’ To Avoid Hungry Bats

Fur-like scales on the insects’ thoraxes absorb the echoes of bat calls, according to new research

The fossilized crania of three long-snouted cetaceans.

The Mystery of Ancient Dolphins’ Super-Long Snouts

A new study suggests the extinct cetaceans used their snouts to hit and stun prey, much as swordfish do

Assortment of bird eggs and a fossil theropod egg

Dinosaurs May Have Given Birds Their Colorful, Speckled Eggs

A new analysis of fossilized eggshells suggests diversely patterned eggs evolved much earlier than previously believed

Feast your eyes on the blind Somalian cavefish, which has—like mammals—mysteriously lost the ability to use light to fix damaged DNA.

Blind Cavefish Shed Light on the Dark Days of Mammalian Evolution

Like mammals, these cave-dwelling creatures have discarded a solar-powered system that repairs UV-damaged DNA

Scientists used modified egg and stem cells to create female mice with two mothers. These fatherless mice grew up to have babies of their own (through more typical means of conception).

Scientists Break the Rules of Reproduction by Breeding Mice From Single-Sex Parents

By tinkering with the genes of sperm and egg cells, it's possible to breed mice from two females—and even from two males

The Average Person Can Recognize 5,000 Faces

But some participants in a recent study were able to recall as many as 10,000 faces

A blue whale, the largest known creature in Earth's history, dives into the St. Lawrence river in Quebec, Canada.

Today's Whales Are Huge, But Why Aren't They Huger?

Most giant cetaceans only got giant in the past 4.5 million years, suggesting they could have room to grow

New Fossil Dubbed 'Giant Thunderclap at Dawn' Shows How Big Dinos Went From Two Legs to Four

A new species discovered in South Africa shows how dinosaurs went from bipedal beasts to four-legged giants like brontosaurus

An artist’s impression of the prehistoric bird from the early Cretaceous period that retained some pretty dino-like features.

This 127-Million-Year-Old Fossil Links Dinosaur and Bird Evolution

The dino-bird hybrid boasts a stubby tail, clawed wings and sharp teeth

Researchers first discovered Dickinsonia fossils back in 1946.

The World's Earliest Known Animal May Have Been a Blob-Like Undersea Creature

Traces of fat found on a 558-million-year-old fossil suggest <em>Dickinsonia</em> was an animal rather than fungus, plant or single-celled protozoa

Humans' CMAH gene mutation may enable them to exhibit higher endurance over long periods of exercise

Human Gene Mutation May Have Paved the Way for Long-Distance Running

Mice with engineered versions of the CMAH gene exhibited 30 percent better endurance than those without

Chimps and Toddlers Use Same Gestures to Get Attention

A new study shows 12 to 24 month old children and chimps use 46 of the same movements to communicate, including stomping, pointing and clapping

A jaw of an Eoconodon coryphaeus—a house cat-sized omnivore that lived between about 66 and 63 million years ago—that Williamson collected in the San Juan Basin.

Nuclear Technology May Help Bring Early Mammal Evolution Into Focus

Using a neutron scanner at Los Alamos, paleontologists are generating high-resolution imagery of early mammal fossils

Sometimes, it's okay to skip leg day.

For Men, Gains in the Gym May Come at a Cost to Sperm

There might be a tradeoff between how strong men look and sperm count

New research shows that fish can tell the differences between quantities. What does that mean for our special human brains?

One Fish, Two Fish, Fish Can Count(ish?)

New research shows—again—that fish “count” like humans do. Are our cognitive evolutionary roots fishier than we thought?

A photograph of the fossil turtle Eorhynchochelys sinensis, which lived about 228 million years ago and sported a beak but no shell.

Newly Discovered Turtle Ancestors Chomped With Beaks But Bore No Shells

A 228-million-year-old fossil fills gaps in the tale of turtle evolution—and raises a few questions

Some of the ‘remarkable beetles’ Wallace collected in Borneo.

Tracing Alfred Russel Wallace’s Footsteps Through the Jungles of Borneo

A biologist treks to the site where the little-known naturalist penned a paper on evolution that would spur on a rivalrous Charles Darwin

How Accurate Is the Theory of Dog Domestication in 'Alpha'?

The "boy and his dog" tale is a piece of prehistoric fiction, but scientists are uncovering the true origins of our incredible relationship with dogs

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