Art by James Havens Nanuqsaurus, standing in the background, and pachyrhinosaurus, skull in the foreground, were among the dinosaur species included in a new study led by scientists at the University of Alaska Fairbanks and the University of Reading that calls into question Bergmann’s rule.

Dinosaur study challenges Bergmann’s rule

Herrerasaurus ischigualastensis is an early saurischian dinosaur. It shared a bipedal, running anatomy common to large carnivorous dinosaurs that would evolve in the future, but this dinosaur lived at a time when dinosaurs were small-bodied and rare. Credit: Kristina Curry Rogers (illustration by Jordan Harris, CC-BY 4.0 (creativecommons.org/licenses/by/4.0/)

Early dinosaurs grew up fast, but they weren’t the only ones

Reconstruction of fossil fish. Credit: Richard Dearden

3D mouth of an ancient jawless fish suggests they were filter-feeders,...

New reconstruction of the skeleton of the 375-million-year-old fossil fish, Tiktaalik roseae. In a new study, researchers used Micro-CT to reveal vertebrae and ribs of the fish that were previously hidden beneath rock. The new reconstruction shows that the fish’s ribs likely attached to its pelvis, an innovation thought to be crucial to supporting the body and for the eventual evolution of walking. Credit: Thomas Stewart, Penn State

In the evolution of walking, the hip bone connected to the...

Researchers used unmanned aerial vehicle images superimposed on centimeter-resolution topography to study the surface rupture of the 2021 magnitude 7.4 Maduo earthquake in China. This image shows the fault scarp, tensional cracks on the hanging wall, and the left-laterally offset channel. Credit: Yanxiu Shao

Fault maturity or orientation: Which matters more for quakes?

A theropod track lies in rock near the west bank of the Kukpowruk River. Photo courtesy of Anthony Fiorillo

Alaska dinosaur tracks reveal a lush, wet environment

The most common tooth type, of the famous Spinosaurus, with characteristic sail on its back. Images all from article discussed.

Higher carnivorous dinosaur biodiversity of famous Kem Kem beds, Morocco

Khinjaria acuta was around the length of an orca, (7-8 metres). (Credit: Andrey Atuchin)

Fossils of giant sea lizard with dagger-like teeth show how our...

Illustration showing the fossil skeleton of Imparavis attenboroughi, alongside a reconstruction of the bird in life. © Ville Sinkkonen.

Fossil named ‘Attenborough’s strange bird’ was the first in its kind...

Fossilised trackways of small arthropods

Earth’s earliest forest revealed in Somerset fossils

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