Platylithophycus cretaceus specimen. The scale bar is 5 centimeters.

First an alga, then a squid, enigmatic fossil is actually a...

University of Rochester astrophysicist Adam Frank.

We think we’re the first advanced earthlings — but how do...

CT-rendered chimpanzee cranium (left) with enlarged image of a virtually extracted molar (middle).

The secret life of teeth: Evo-devo models of tooth development

Ecological restoration of moths in the Cretaceous Burmese amber forest.

Fossil study sheds light on ancient butterfly wing colors

Female (top) and male (below) of the ostracod Cypideis salebrosa.

Scientists Understand the Role of Sexual Selection in Extinction

Teeth from the Gadoufaoua deposit (Niger). The scale bar represents 2 cm. From left to right: teeth of a giant crocodile, Sarcosuchus imperator, a spinosaurid, a non-spinosaurid theropod (abelisaurid or carcharodontosaurid), a pterosaur, a hadrosaurid (a herbivorous dinosaur), a pycnodont (fish), and a small crocodylomorph.

The dinosaur menu, as revealed by calcium

Shonisaurus

Giant ichthyosaur is one of largest animals ever

Brewing up Earth’s earliest life

Ichthyosaur

Prehistoric reptile pregnant with octuplets

The 170 million-year-old tracks were made in a muddy lagoon off the north-east coast of what is now the Isle of Skye Credit: University of Edinburgh/PA Wire

World’s largest dinosaur found in Scotland

This image depicts a reconstruction of what the extinct monitor lizard might have looked like.

Extinct monitor lizard had four eyes, fossil evidence shows

Dinosaur

New Patagonian predator sheds light on mysterious meat-eating dinosaur group

Back at the lab, the researchers found the fossil glowed under a black light

Researchers investigate ‘baby’ tyrannosaur fossil unearthed in Montana

scorpionfly fossil

Fossils highlight Canada-Russia connection 53 million years ago

Arkansaurus fridayi

New Ornithomimosaur from Arkansas Described

Paratirolites

Mass extinction with prior warning

Isisfordia duncani

Cretaceous croc had steamy past

Teleocrater, an early dinosaur relative, is shown feeding on Cynognathus, while hippo-like dicynodonts look on. All of these animals lived in the mid-Triassic of Tanzania, about 240 million years ago.

Decade of fossil collecting gives new perspective on Triassic period, emergence...

yeti crab

Deep-sea wildlife more vulnerable to extinction than first thought

Sperm whales (above), which have teeth, don’t grow as large as baleen whales

Why aquatic mammals need to be big, but not too big

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