(Phys.org)—Despite evidence that phenotypic change does not always occur uniformly across all species members and lineages, single size or shape traits are often used to represent species-level change in its entirety. Recently, ...
There are extinctions, and then there's the "Great Dying." That was the Permian-Triassic extinction around 250 million years ago, which wiped out nearly all life on Earth.
Evolution
Dec 2, 2021
0
1599
A new technique called sci-Space, combined with data from other technologies, could lead to four-dimensional atlases of gene expression across diverse cells during embryonic development of mammals.
Biotechnology
Jul 1, 2021
0
13
A team of international researchers, which includes a Saint Louis University Madrid anthropologist, dug deep to find some of the oldest African DNA on record, in a new study published in Nature.
Archaeology
Jan 22, 2020
1
3829
The arrival 36 years ago of a strange bird to a remote island in the Galapagos archipelago has provided direct genetic evidence of a novel way in which new species arise.
Plants & Animals
Nov 23, 2017
55
5693
University of Utah scientists deciphered maternal genetic material from two babies buried together at an Alaskan campsite 11,500 years ago. They found the infants had different mothers and were the northernmost known kin ...
Archaeology
Oct 26, 2015
4
1133
(Phys.org) —A protein-folding simulation shows that the debated theory of long-term evolution is not only possible, but that the outcomes are predictable. The Stanford experiment provides a framework for testing evolutionary ...
Evolution
Mar 18, 2013
24
0
Scientists call it LUCA, the Last Universal Common Ancestor, but they don't know much about this great-grandparent of all living things. Many believe LUCA was little more than a crude assemblage of molecular parts, a chemical ...
Cell & Microbiology
Oct 5, 2011
11
0
New species are not just discovered in exotic locales -- even places as urban as California still yield discoveries of new plants and animals. Academy scientists recently named a new species of chimaera, an ancient and bizarre ...
Plants & Animals
Sep 22, 2009
0
1
(PhysOrg.com) -- Global calamities like the one that doomed most dinosaurs forever alter the varieties of life found on Earth, but new research shows that it doesn't take a catastrophe to end entire lineages. An analysis ...
Evolution
Aug 6, 2009
3
0
