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This is an artistic reconstruction of a mother and calf of Maiabalaena nesbittae nursing offshore of Oregon during the Oligocene, about 33 million years ago.

Whales lost their teeth before evolving hair-like baleen in their mouths

Teilhardina brandti

Oldest-known ancestor of modern primates may have come from North America,...

For her research Witkowski collected seawater with fresh, modern algae to test potential indicators of the past.

Fossil algae reveal 500 million years of climate change

Mosquitoes in the amber.

Blood-sucking flies have been spreading malaria for 100 million years

During the Triassic period (252-201 million years ago) mammal-like reptiles called therapsids co-existed with ancestors to dinosaurs, crocodiles, mammals, pterosaurs, turtles, frogs, and lizards.

Gigantic mammal ‘cousin’ discovered

Field photograph of massive flowstone layers from one of the South African hominin caves, with red cave sediments underneath.

Evolution: South Africa’s hominin record is a fair-weather friend

A fossil tooth of a hippo (Hippopotamus amphibius) (left) and a fossil tooth of a white rhinoceros (Ceratotherium simum) (right) , two of the few surviving megaherbivores, from the Late Pleistocene of western Kenya (left).

Human ancestors not to blame for ancient mammal extinctions in Africa

two fossilized dinosaur skeletons found on a Montana

Fight over dinosaur fossils comes down to what’s a mineral

Dinosaur reconstructions by Dr Anthony Romilio

Tiny raptor tracks lead to big discovery

Planktonic foraminifera, such as these collected in the Gulf of Mexico, form the base of many marine and aquatic food chains.

Climate, life and the movement of continents: New connections

A reconstruction of the Eocene of Turkey, where the small marsupial was found. Besides the marsupials, the fauna includes embrithopods (the rhino-like animals of the background, more related to elephants and sea cows), pleuraspidotheriids (primitive ungulates with a deer/dog look), a group of primates called omomyids, bats, tortoises and crocodiles. Credit: Oscar Sanisidro | University of Kansas

Deep-time evolution of animal life on islands

Lijinganthus revoluta

Ancient flower fossil points to core eudicot boom 99 million years...

Reconstruction of a living Mirarce eatoni perched on the horns of the ceratopsian dinosaur

Rare fossil bird deepens mystery of avian extinctions

Pararhabdodon isonensis

Most complete study on Europe’s greatest Hadrosaur site published

Dinosaur blood vessel with adjacent bone matrix that still contains bone cells.

A toast to the proteins in dinosaur bones

Extraction of the sequence in Basa de la Mora lake by the IPE-CSIC research group of Quaternary Paleoenvironments. Credit: Anchel Belmonte Creative Commons BY-ND

Holocene temperature in the Iberian Peninsula reconstructed studying insect subfossils

Xenothrix's close relative, the red titi monkey (Callicebus cupreus).

Primates of the Caribbean: Ancient DNA reveals history of mystery monkey

UNLV geologist Stephen Rowland discovered that a set of 28 footprints left behind by a reptile-like creature 310 million years ago are the oldest ever to be found in Grand Canyon National Park.

Reptile tracks oldest ever found in Grand Canyon

Scientists theorize new origin story for Earth’s water

The skull of the holotype specimen of C. parvus (JLUM L0304-j-Zn2).

The teeth of Changchunsaurus: Rare insight into ornithopod dinosaur tooth evolution

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