Quantcast

Latest Evolution Stories

The Evolutionary History Of Humans In Europe
2012-08-15 13:28:42

April Flowers for redOrbit.com - Your Universe Online New analytical techniques are changing long-held, simplistic views about the evolutionary history of humans in Europe.  The study, reported in the journal Trends in Genetics, found that many cultural, climatic, and demographic events have shaped genetic variation among modern-day European populations and that the variety of those mechanisms is more diverse than previously thought. Recent advances in paleogenetics, or the study...

Neanderthals And Humans - Interbreeding Or Common Ancestry
2012-08-14 07:51:50

April Flowers for redOrbit.com - Your Universe Online A new study from the University of Cambridge finds that the DNA similarities between Neanderthals and modern humans are more likely to have arisen from a shared common ancestor than from interbreeding. Previously, it has been suggested that the shared parts of the genome sequence between the two populations was the result of interbreeding, but the new research, published this week in the journal Proceedings of the National Academy of...

2012-08-13 11:12:47

Max Planck scientist investigates the evolutionary model of Muller's ratchet From protozoans to mammals, evolution has created more and more complex structures and better-adapted organisms. This is all the more astonishing as most genetic mutations are deleterious. Especially in small asexual populations that do not recombine their genes, unfavorable mutations can accumulate. This process is known as Muller's ratchet in evolutionary biology. The ratchet, proposed by the American geneticist...

Human Evolution, Neanderthals And Interbreeding
2012-07-28 06:49:58

Brett Smith for redOrbit.com - Your Universe Online A recent genetics study has shown evidence that another branch of the human evolutionary tree may have existed alongside Neanderthals, fueling the ongoing feud between paleontologists and geneticists. According to the study published this week in the journal Cell, a team of geneticists led by Joseph Lachance and Sarah A. Tishkoff of the University of Pennsylvania found DNA evidence of an interbreeding with an unknown archaic species of...

2012-07-27 12:37:25

The Annual Meeting of the American Crystallographic Association (ACA) will be held July 28 — Aug. 1, 2012, at the Westin Waterfront Hotel in Boston, Mass. Crystallography is the science devoted to exploring the arrangement of atoms in regular crystalline solids and in complicated molecules. Scientists will present research spanning a diverse array of disciplines, including medicine, genomics, material science, and structural biology. The following summaries link to full news releases...

Sea Star Evolution
2012-07-26 14:08:55

How quickly can new species arise? In as little as 6,000 years, according to a study of Australian sea stars. "That's unbelievably fast compared to most organisms," said Rick Grosberg, professor of evolution and ecology at UC Davis and coauthor on the paper published July 18 in the journal Proceedings of the Royal Society B. Grosberg is interested in how new species arise in the ocean. On land, groups of plants and animals can be physically isolated by mountains or rivers and then...

2012-07-19 13:46:06

Researchers address great uncertainties in number of species and emphasize the use of technology to accelerate the rate of species discovery Most of the world's species are still unknown to science although many researchers grappled to address the question of how many species there are on Earth over the recent decades. Estimates of non-microbial diversity on Earth provided by researchers range from 2 million to over 50 million species, with great uncertainties in numbers of insects, fungi,...

2012-07-16 23:03:08

Where´s the white hot furnace that powers evolution? For Darwin it lay in natural selection. The “Modern Synthesis” relocated it to genetic mutation. In the third of a series of articles published at http://www.takeondarwin.com, Contrarian Evolutionist author Shaun Johnston relocates it once again, to wherever variations in living creatures are created. (PRWEB) July 16, 2012 Modern evolutionary theory is the opposite of what people assumed when they first wondered what made...

2012-07-11 13:39:12

BPA in rivers leads to breakdown of fish species barriers Hormone-mimicking chemicals released into rivers have been found to impact the mating choices of fish, a new study has revealed. The controversial chemical BPA, which emits oestrogen-like properties, was found to alter an individual's appearance and behavior, leading to inter-species breeding. The study, published in Evolutionary Applications, reveals the threat to biodiversity when the boundaries between species are blurred. The...

Rare Glimpse Shows Origin Of Species
2012-07-10 14:06:33

Plant overcomes infertility to give rise to a new species in Scotland A new species of monkey flower, created by the union of two foreign plant species, has been discovered on the bank of a stream in Scotland. Genetic changes in this attractive yellow-flowered hybrid have allowed it to overcome infertility and made it a rare example of a brand new species that has originated in the wild in the last 150 years. Thousands of wild species and some crops are thought to have originated in this...


Latest Evolution Reference Libraries

Paleontology
2014-01-12 00:00:00

Paleontology or Palaeontology is the scientific study of prehistoric life, including the study of fossils to determine the organisms evolution and interactions with each other and their environments. Paleontological observations have been documented as far back as 5th century BC. The science became established in the 18th century as a result of Georges Cuvier’s work on comparative anatomy, and it developed quickly within the 19th century. The term itself comes from Greek palaios, meaning...

More Articles (1 articles) »
Word of the Day
callithump
  • A somewhat riotous parade, accompanied with the blowing of tin horns, and other discordant noises; also, a burlesque serenade; a charivari.
'Callithump' is a back-formation of 'callithumpian,' a 'fanciful formation' according to the Oxford English Dictionary. However, the English Dialect Dictionary, says 'Gallithumpians' is a Dorset and Devon word from the 1790s that refers to 'a society of radical social reformers' or 'noisy disturbers of elections and meetings.'
Related