Paleontologists are getting a glimpse at life over a billion years in the past based on chemical traces in ancient rocks and the genetics of living animals. Research published in Nature Communications combines geology and ...
Evolution
Dec 7, 2023
0
114
Takahē are a striking bird and a national treasure in Aotearoa New Zealand. But the history and origin story of this flightless swamp hen have become a point of scientific debate.
Evolution
Dec 5, 2023
0
18
A RUDN University mathematician and a colleague developed a theoretical model of mass extinction. The model for the first time took into account two important factors—the inverse effect of vegetation on climate change and ...
Mathematics
Oct 31, 2023
1
96
If you looked up 66 million years ago you might have seen, for a split second, a bright light as a mountain-sized asteroid burned through the atmosphere and smashed into Earth. It was springtime and the literal end of an ...
Paleontology & Fossils
Sep 16, 2023
0
1
A small team of evolutionary biologists at Flinders University, in Australia, working with one colleague from the University of Salford in the U.K. and another from the University of California, Los Angeles, has found fossilized ...
Sabertooth cats make up a diverse group of long-toothed predators that roamed Africa around 6–7 million years ago, around the time that hominins—the group that includes modern humans—began to evolve.
Evolution
Jul 20, 2023
0
130
Biomechanical studies on the arachnid-like front "legs" of an extinct apex predator show that the 2-foot (60 centimeter) marine animal Anomalocaris canadensis was likely much weaker than once assumed. One of the largest animals ...
Molecular & Computational biology
Jul 4, 2023
0
448
Cycads, a group of gymnosperms which can resemble miniature palm trees (like the popular sago palm houseplant) were long thought to be "living fossils," a group that had evolved minimally since the time of the dinosaurs. ...
Evolution
May 2, 2023
0
1278
The sabertooth cat is an Ice Age icon and emblem of strength, tenacity and intelligence. These animals shared the North American landscape with other large carnivores, including short-faced bears, dire wolves and the American ...
Paleontology & Fossils
Apr 5, 2023
0
186
Abruptly melting ice sheets, the collapse of coral reefs and rainforests: nature is complex—and climate policy must consider physical "tipping points" as well as uncertainties and measurement problems. How can the fight ...
Environment
Mar 17, 2023
3
20
