A new species of carnivorous dinosaur – one of the three largest ever discovered in North America – lived alongside and competed with small-bodied tyrannosaurs 98 million years ago. This newly discovered species, Siats ...
Archaeology
Nov 22, 2013
5
0
The diet of fossil extinct animals can hold clues to their lifestyle, behavior, evolution and ultimately extinction. However, studying an animal's diet after millions of years is difficult due to the poor preservation of ...
Ecology
May 31, 2022
0
796
It's not just their teeth and jaws that people find intriguing. It's also their funky shapes and unique skeletal makeup that capture attention. Unlike humans and most land animals, sharks have mineralized cartilage skeletons ...
Plants & Animals
Jan 3, 2019
0
118
One is the largest animal known to have ever existed. The other is a revered predator at the top of its food chain. But would a blue whale and a great white shark ever find themselves at odds with each other in the wild?
Plants & Animals
Sep 2, 2022
0
44
Two hundred and fifty-two million years ago, Earth experienced a mass extinction so devastating that it's become known as "the Great Dying." Massive volcanic eruptions triggered catastrophic climate change, killing off nine ...
Paleontology & Fossils
May 22, 2023
0
247
A team of researchers from Universidade Federal de Santa Maria and Universidade de São Paulo, both in Brazil, has found and identified the oldest carnivorous dinosaur fossil to date. In their paper published in the journal ...
New UMD study suggests that everywhere tyrannosaurs rose to dominance, their juveniles took over the ecological role of medium-sized carnivores
Paleontology & Fossils
Jun 17, 2021
0
400
The reconstructed megalodon (Otodus megalodon) was 16 meters long and weighed more than 61 tons. It was estimated that it swam at around 1.4 meters per second, required over 98,000 kilo calories every day and had a stomach ...
Ecology
Aug 17, 2022
0
1018
Even without hunting rifles, humans appear to have a strong negative influence on the movement of wildlife. A study of Glacier National Park hiking trails during and after a COVID-19 closure adds evidence to the theory that ...
Ecology
Jan 19, 2023
0
177
Iconic tyrannosauroids like T. rex famously dominated the top of the food web at the end of the reign of the dinosaurs. But they didn't always hold that top spot.
Paleontology & Fossils
Sep 8, 2021
0
2514
