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Latest Evolution Stories

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...

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2012-07-09 14:13:08

Lee Rannals for redOrbit.com - Your Universe Online Research has revealed just what is behind a birds' song, shedding more light on nature's melody. Canadian researchers found that closely related birds that share the same habitat are not necessarily birds of the same feather that flock together in music, but instead tend to look and sound different. The team studied 250 bird species throughout the world and were able to compile a database of where the birds lived, and what they...

Two Fused Species Give Rise To Plant Pest
2012-07-03 10:30:00

A fungal species native to Iran which attacks grasses is the result of natural hybridisation that occurred just a few hundred years ago Zymoseptoria tritici is often a headache for European farmers. This ascomycete originating from the Middle East attacks the leaves of wheat plants triggering "speckled leaf blotch", which can cut crop yields by up to 50 percent. Scientists from the Max Planck Institute for Terrestrial Microbiology in Marburg and Aarhus University in Denmark have now taken...

2012-06-28 20:25:11

Frequency-dependent selection fosters the diversity of populations but does not always increase the average fitness of the population. Genetic diversity arises through the interplay of mutation, selection and genetic drift. In most scientific models, mutants have a fitness value which remains constant throughout. Based on this value, they compete with other types in the population and either die out or become established. However, evolutionary game theory considers constant fitness values...


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...

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Word of the Day
cock-a-hoop
  • Exultant; jubilant; triumphant; on the high horse.
  • Tipsy; slightly intoxicated.
This word may come from the phrase 'to set cock on hoop,' or 'to drink festively.' Its origin otherwise is unclear. A theory, according to the Word Detective, is that it's a 'transliteration of the French phrase 'coq a huppe,' meaning a rooster displaying its crest ('huppe') in a pose of proud defiance.' Therefore, 'cock-a-hoop' would 'liken a drunken man to a boastful and aggressive rooster.'
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