A definitive geological timeline shows that a series of massive volcanic explosions 66 million years ago spewed enormous amounts of climate-altering gases into the atmosphere immediately before and during the extinction event ...
Earth Sciences
Dec 18, 2014
10
0
About 250 million years ago, the Permian-Triassic mass extinction killed over 80% of the planet's species. In the aftermath, scientists believe that life on Earth was dominated by simple species for up to 10 million years ...
Ecology
Feb 9, 2023
1
337
Scientists have long puzzled over the gap in the fossil record that would explain the evolution from invertebrates to vertebrates. Vertebrates, including fishes, amphibians, reptiles, birds, mammals, and humans, share unique ...
Evolution
Jul 7, 2022
1
1505
We all know that the dinosaurs died in a mass extinction. But did you know that there were other mass extinctions? There are five most significant mass extinctions, known as the "big five," where at least three-quarters of ...
Earth Sciences
Nov 1, 2021
0
314
It's a familiar story—the mighty dinosaurs dominated their prehistoric environment, while tiny mammals took a backseat, until the dinosaurs (besides birds) went extinct 66 million years ago, allowing mammals to shine. Just ...
Archaeology
Jun 7, 2016
10
907
When cocaine kingpin Pablo Escobar was shot dead in 1993, the four hippos he brought to his private zoo in Colombia were left behind in a pond on his ranch. Since then, their numbers have grown to an estimated 80-100, and ...
Ecology
Mar 23, 2020
0
1513
(Phys.org)—A team of researchers affiliated with the MD Anderson Cancer Center in Texas and the University of Utah has given a presentation at this year's American Society of Human Genetics Annual Meeting which included ...
Human activity and appetites have weakened Earth's resilience, pushing it far beyond the "safe operating space" that keeps the world livable for most species, including our own, a landmark study said Wednesday.
Environment
Sep 17, 2023
0
199
New research from the University of Kansas might resolve a mystery in the "aging process" in species—or, how a species' risk of going extinct changes after that species appears on the scene.
Evolution
Feb 20, 2024
0
149
The Latest Permian Mass Extinction (LPME) was the largest extinction in Earth's history to date, killing between 80–90% of life on the planet, though finding definitive evidence for what caused the dramatic changes in climate ...
Earth Sciences
Jan 26, 2023
4
257
