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Latest Evolutionary biology Stories

First Time Evidence: Leftover Male Fetal DNA Found In Female Brains
2012-09-27 09:59:56

Lawrence LeBlond for redOrbit.com - Your Universe Online A small amount of male DNA can be found in the brains of women, something researchers at Fred Hutchinson Cancer Research Center (FHCRC) believe may be the result of leftover DNA in the mother´s body by a male fetus, which occurs relatively frequently. In a first-of-its-kind study, William Chan, PhD, Department of Biochemistry at University of Alberta, and J. Lee Nelson, senior author at FHCRC, looked at microchimerism--the...

2012-09-27 00:00:21

An Evolutionary Biologist at The University of Manchester, working with scientists in the United States, has found compelling evidence that parts of the brain can evolve independently from each other. It's hoped the findings will significantly advance our understanding of the brain. The unique 15 year study with researchers at the University of Tennessee and Harvard Medical School also identified several genetic loci that control the size of different brain parts. The aim of the...

Red Queen Or Red King
2012-09-24 10:52:18

In relationships based on mutuality, the number of individuals involved can determine the rate at which species evolve The relationship between species determines how rapidly they evolve. Parasites and their hosts coevolve more rapidly, and partners in a mutualistic relationship can evolve more slowly. But this view is obviously too simplistic. The rate of evolution in a mutualistic relationship does not depend only on the type of interactions, but also on the number of individuals...

Some Rice Species Rendered Sterile Due To Genes
2012-09-13 13:32:44

System of 3 genes prevents hybrid rice from reproducing, new study shows Researchers have identified a set of three genes that are responsible for hybrid sterility in rice, or the inability of many hybrid rice species to pass their genes on to the next generation. These findings inform a model that suggests how such hybrid sterility is maintained across rice species, and they may lead to the genetic improvement of rice as a food stock. The research is published in the 14 September issue...

2012-09-12 11:37:38

Sex can trigger remarkable female responses including altered fertility, immunity, libido, eating and sleep patterns - by the activation of diverse sets of genes, according to research from the University of East Anglia. Publishing today in the journal Proceedings of the Royal Society B, the researchers studied how female Drosophila melanogaster - or fruit flies — respond to mating. They discovered that a single protein found in semen generates a wide range of responses in many...

2012-09-07 09:51:49

Researchers from the Guy Rouleau Laboratory affiliated with the CHUM Research Centre and the CHU—Sainte-Justine Research Centre have discovered the genetic cause of a rare disease reported only in patients originating from Newfoundland: hereditary spastic ataxia (HSA). This condition is characterized by lower-limb spasticity (or stiffness) and ataxia (lack of coordination), the latter leading to speech and swallowing problems, and eye movement abnormalities. The disease is not...

Why Do Some Younger Animal Families Have More Species Tha Older Families?
2012-08-29 13:30:11

Brett Smith for redOrbit.com - Your Universe Online Basic logic would suggest that the longer a species is around–the more time it has to adapt and evolve, eventually sprouting another whole branch on the tree of life. However, that may not necessarily be the case according to a team of American biologists who just completed an evolutionary survey that accounted for around 1.2 million species. "When we look across the tree of life, the age of the group tells us almost nothing...

One Extinction Leads To Another
2012-08-20 10:09:46

redOrbit Staff & Wire Reports - Your Universe Online According to new research, when a carnivore becomes extinct, other predatory species could soon tag along. Other scientists have previously submitted this theory, but a University of Exeter team has now carried out the first experimentation to authenticate it. According to lead researcher Dr Frank van Veen of the University of Exeter's Centre for Ecology and Conservation, "Our experiment provides the first proof of something that...

2012-08-18 23:02:36

Fitness pro Steve Krebs shares his tips on doubling a fitness business in just one year in a new online training video. The interview with John Spencer Ellis is now available online at http://johnspencerellis.com/how-to-double-your-fitness-business-in-one-year-interview-with-steve-krebs/. Rancho Santa Margarita, CA (PRWEB) August 18, 2012 The differences between a successful fitness business and an average one are pretty profound. With that in mind, fitness pros Steve Krebs and John Spencer...

2012-08-17 06:01:17

In the face of a changing climate many species must adapt or perish. Ecologists studying evolutionary responses to climate change forecast that cold-blooded tropical species are not as vulnerable to extinction as previously thought. The study, published in the British Ecological Society's Functional Ecology, considers how fast species can evolve and adapt to compensate for a rise in temperature. The research, carried out at the University of Zurich, was led by Dr Richard Walters, now at...


Latest Evolutionary biology Reference Libraries

2014-04-22 14:47:42

John Harold Ostrom (February 18, 1928 – July 16, 2005) was an American Paleontologist who was greatly influential in the revival of scientific research on Dinosaurs. He is best known for demonstrating that Dinosaurs were less like contemporary reptiles but more closely related to large, flightless birds like the ostrich – a theory that holds its ground in the paleontological community to this day. John Ostrom was born and raised in Schenectady, New York. His father was a physician, and...

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...

New Phytologist
2012-04-30 15:00:51

The New Phytologist is a peer-reviewed scientific journal published by Wiley-Blackwell on behalf of the New Phytologist Trust. It covers all aspects of plant science, with topics ranging from intracellular processes to global environmental change. Articles are published in the following categories: Original research articles, Research reviews, Commentaries, Letters, Meeting reports, Tansley reviews. The following topics and subtopics are covered: Physiology and development:...

Journal of Zoological Systematics and Evolutionary Research
2012-04-29 22:59:00

Journal of Zoological Systematics and Evolutionary Research is a quarterly peer-reviewed scientific journal published by Wiley-Blackwell. It was originally established in 1963, then reestablished in 1994 by John Wiley & Sons. It was published as ‘Zeitschrift für zoologische Systematik und Evolutionsforschung’ from March 1963 to June 1994. It was published by the Academic Publishers’ Association (Akademische Verlagsgesellschaft ) Frankfurt, Germany. The editor-in-chief is Dr....

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Word of the Day
cacodemon
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'
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