An ancient group of African fish known as bichirs were examined by scientists seeking a better understanding of the development of early vertebrates.
Evolution
Jun 8, 2012
0
0
Among sarcopterygians (lobe-finned fishes and tetrapods), coelacanths are known for their evolutionary conservatism. Epitomized by the legendary living fossil Latimeria, the distinctive body plan of anatomically modern coelacanths ...
Archaeology
Apr 11, 2012
0
0
A small fish crawling on stumpy limbs from a shrinking desert pond is an icon of can-do spirit, emblematic of a leading theory for the evolutionary transition between fish and amphibians. This theorized image of such a drastic ...
Archaeology
Dec 27, 2011
6
0
The history of evolution is periodically marked by explosions in biodiversity, as groups of species try out a wide range of shapes and sizes. With a new analysis of two such adaptive radiations in the fossil record, researchers ...
Evolution
Dec 20, 2011
8
0
(PhysOrg.com) -- Fossil fuel combustion, and with it the release of heat-trapping carbon dioxide (CO2), is still growing globally. Beyond climate change, this is also causing the world’s “other CO2 problem,” ...
Environment
Dec 13, 2011
7
0
More than one billion people around the world depend upon fish for protein in their diet. But the threat of mercury poisoning, especially in children, has raised concerns about the safety of eating fish.
Environment
Oct 13, 2011
1
0
.jpg)
(PhysOrg.com) -- Reorganisation of the brain and sense organs could be the key to the evolutionary success of vertebrates, one of the great puzzles in evolutionary biology, according to a paper by an international team of ...
Archaeology
Aug 17, 2011
0
0
Genetic instructions for developing limbs and digits were present in primitive fish millions of years before their descendants first crawled on to land, researchers have discovered.
Biotechnology
Jul 11, 2011
35
0
SU De-Zao, a retired paleoichthyologist of Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, found a new paleogene leuciscin fish, Tianshanicus liui sp. nov., in the Anjihaihe Formation ...
Archaeology
Jun 2, 2011
0
0
.jpg)
(PhysOrg.com) -- Since the Industrial Revolution, over half of all the CO2 produced by burning fossil fuels has been absorbed by the ocean, making pH drop faster than any time in the last 650,000 years and resulting in ocean ...
Ecology
Jun 1, 2011
3
0
