Evidence in lampreys for the presence of a rudimentary sympathetic nervous system, previously thought to be unique to jawed vertebrates, has been presented in Nature. The finding may prompt a rethink of the origins of the ...
Evolution
Apr 18, 2024
0
41
Early jawless fish were likely to have used bony projections surrounding their mouths to modify their mouth shape while they collected food.
Evolution
Apr 10, 2024
0
96
New fossil data show that our fishy ancestors may have risen to dominance by becoming predators of their ancient jawless cousins.
Paleontology & Fossils
Dec 18, 2019
0
570
The oldest known ortholog of the ion channel that is defective in patients with cystic fibrosis arose approximately 450 million years ago in the sea lamprey, researchers report October 31st in the journal Developmental Cell. ...
Cell & Microbiology
Oct 31, 2019
0
560
A new study has revealed that gills originated much deeper in evolutionary history than previously believed. The findings support the idea that gills evolved before the last common ancestor of all vertebrates, helping facilitate ...
Archaeology
Feb 9, 2017
0
234
Researchers at the M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences have collaborated with their colleagues from the A.N. Severtsova Institute of Ecology and Evolution ...
Evolution
Jan 11, 2017
0
28
The Galeaspida is a clade of armored jawless vertebrates. Most galeaspids have a strongly flattened head-shield, dorsally set eyes, and a ventral mouth, indicating a benthic lifestyle moving on sandy or muddy substrates in ...
Archaeology
Sep 8, 2015
2
33
New research suggests our jawed ancestors weren't responsible for the demise of their jawless cousins as had been assumed. Instead Dr Robert Sansom from The University of Manchester believes rising sea levels are more likely ...
Archaeology
Dec 16, 2014
6
2
A team of French and Swedish researchers have presented new fossil evidence for the origin of one of the most important and emotionally significant parts of our anatomy: the face. Using micron resolution X-ray imaging, they ...
Archaeology
Feb 12, 2014
0
0
According to the '2R hypothesis', the evolution of modern vertebrates was propelled forward in part by two events in our early ancestry in which the entire genome was duplicated. These events, known as 1R and 2R, yielded ...
Biotechnology
Feb 12, 2014
0
0
