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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

Head of Nasutoceratops.

Dinosaur frills and horns did not evolve for species recognition

Top: A medaka fish with normal dorsal and paired pectoral/pelvic fins. Bottom: When the ZRS and sZRS enhancers are knocked out, the fins do not develop normally.

Genetic analysis uncovers the evolutionary origin of vertebrate limbs

Colobops noviportensis

Paleontologists put the bite on an ancient reptile from New England

Undead T. rex.

The curse of zombie fossils

A sample of 2-billion-year-old salt (pink-white recrystallized halite) with embedded fragments of calcium sulfate from a geological drill core in Russian Karelia.

Two-billion-year-old salt rock reveals rise of oxygen in ancient atmosphere

Ichthyosaur skeleton

Are palaeontologists naming too many species?

The first evidence of human life in the Olorgesailie Basin comes from about 1.2 million years ago. For hundreds of the thousands of years, people living there made and used large stone-cutting tools called handaxes (left).

Scientists discover evidence of early human innovation, pushing back evolutionary timeline

Skeleton of the dicynodont Placerias

60-year-old paleontological mystery of a ‘phantom’ dicynodont

The Munich specimen of the transitional bird Archaeopteryx. It preserves a partial skull (top left), shoulder girdle and both wings slightly raised up (most left to center left), the ribcage (center), and the pelvic girdle and both legs in a 'cycling' posture (right); all connected by the vertebral column from the neck (top left, under the skull) to the tip of the tail (most right). Imprints of its wing feathers are visible radiating from below the shoulder and vague imprints of the tail plumage can be recognized extending from the tip of the tail.

The early bird got to fly: Archaeopteryx was an active flyer

Some of the Moroccan pterosaur fossils from the study.

Pterosaurs went out with a bang, not a whimper

The well-preserved tooth is an estimated 2-2.5 million years old and belonged to a Megalodon, regarded as one of the largest and most powerful fish to have ever lived

Ancient giant shark tooth goes missing in Australia

Reconstruction of the late Ediacaran (ca. 550 million years ago) sea floor with burrows of a worm-like animal.This was the first discovery of such deeply penetrating burrows.

Digging up the Precambrian: Fossil burrows show early origins of animal...

illustration of Captorhinus showing breakable tail vertebrae.

Ancient reptile Captorhinus could detach its tail to escape predator’s grasp

Photosynthesis originated a billion years earlier than we thought, study shows

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