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The largest and the smallest: dinosaurs reached an amazing range in size through the Mesozoic Era. Credit: Vitor Silva

How to weigh a dinosaur

Mukawaryu

Using math to examine the sex differences in dinosaurs

The fossil on the right is a complete specimen of Gyaltsenglossus senis (ROMIP 65606.1) showing full length of the proboscis with the six feeding arms at the top. Illustration by Emily S. Damstra. Both images © Royal Ontario Museum

A Bizarre Half Billion-Year Old Worm with Tentacles Solves Evolutionary Mystery

The Titanosaurian embryo skull along with a skull and head reconstruction. Credit: Kundrat et al. /Current Biology

First 3D look at an embryonic sauropod dinosaur reveals unexpected facial...

Life restoration of Lystrosaurus in a state of torpor. Credit: Crystal ShinLife restoration of Lystrosaurus in a state of torpor. Credit: Crystal Shin

Fossil evidence of ‘hibernation-like’ state in 250-million-year-old Antarctic animal

The first complete dinosaur skeleton ever identified has finally been studied in detail and found its place in the dinosaur family tree, completing a project that began more than a century and a half ago. Credit: John Sibbick

Scelidosaurus : First complete dinosaur skeleton ever found is ready for...

Closeup of the stomach area of a fossil ichthyosaur, Guizhouichthyosaurus, showing part of the body of another large marine reptile. The ichthyosaur had swallowed its prey shortly before it died and was fossilized. This is the oldest known direct evidence of megapredation, or a large animal eating another large animal. (Da-Yong Jiang, et al.)

Ichthyosaur’s last meal is evidence of Triassic megapredation

Vertebrae from the torso of the long-necked dinosaur "Arapahoe"

How dinosaur research can help medicine

Manakacha Trackway. Credit: Stephen Rowland

Cliff collapse reveals 313-million-year-old fossil footprints in Grand Canyon National Park

The structure of the trabecular, or spongy bone that forms in the interior of bones, is unique within dinosaurs, according to a recent study by SMU paleontologists and others.

Dinosaurs’ unique bone structure key to carrying weight

Fossil deer toe bones

Fossils reveal diversity of animal life roaming Europe 2 million years...

Scientists identified a new ichnospecies from the shell of an extinct marine turtle fossil, the first known species coexisting on living marine vertebrates

Life in a nutshell: New species found in the carapace of...

Roughly 66 million years ago an asteroid slammed into the Yucatan peninsula. New research shows darkness, not cold, likely drove a mass extinction after the impact. Credit: NASA

Fossil Pollen Record Suggests Vulnerability to Mass Extinction Ahead

Phenotypic difference between each specimen for each landmark in the 11-module dataset and the mean skull shape.For each specimen, the mean landmark configuration is plotted with points coloured relative to the Procrustes distance between the position of that point in the mean shape and in that specimen. Warmer colours denote landmarks having higher displacement from the mean, and cooler colours are more similar to the mean shape. Data and code archived at www.github.com/rnfelice/Dinosaur_Skulls . Credit: Felice et al, 2020 (PLOS Biology, CC BY 4.0)

Bird skull evolution slowed after the extinction of the dinosaurs

A 23-million-year-old leaf preserved in a onetime New Zealand lake bed, key to past atmospheric conditions. One can see veins, glands along the teeth, and holes gnawed by insects, with resulting stunted growth and scar tissue. Credit: Jennifer Bannister/University of Otago

Fossil leaves show high atmospheric carbon spurred ancient ‘global greening’

The ichthyosaur specimen with its stomach contents visible as a block that extrudes from its body. Credit: Ryosuke Motani

Massive, well-preserved reptile found in the belly of a prehistoric marine...

Artists impression of the dinosaur's final moments. Credit: Trudie Wilson

New species of dinosaur discovered on Isle of Wight

The trilobite Aulacopleura kionickii (Barrande, 1846), size: c 1cm. Credit: Brigitte Schoenemann.

Fossilised 429-mln-year-old eye mirrors modern insect vision

lizard

Biologist sequence genome of rare reptilian ‘living fossil’

Malignant cancer diagnosed in a dinosaur for the first time

Malignant cancer diagnosed in a dinosaur for the first time

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