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Latest Evolutionary biology Stories

2012-04-11 09:25:40

Caltech researchers say habitat loss and tropical cooling were to blame for mass extinction The second-largest mass extinction in Earth's history coincided with a short but intense ice age during which enormous glaciers grew and sea levels dropped. Although it has long been agreed that the so-called Late Ordovician mass extinction–which occurred about 450 million years ago–was related to climate change, exactly how the climate change produced the extinction has not been known....

2012-04-09 13:24:01

Courtship rituals can be all-consuming, demanding time and effort — but now scientists have discovered why it might be worth it Courtship rituals can be all-consuming, demanding time and effort — but now scientists have discovered why it might be worth it. Attracting a mate — which can take significant effort, such as in a peacock's show of feathers or the exhaustive rutting of stags — can produce benefits for a species in the long term, a study suggests....

2012-04-04 10:52:28

Genetic mutations in cancer cells can lead to resistance to treatment, thereby potentially resulting in relapse. However, a new article, published April 3 in the magazine section of the online, open-access journal PLoS Biology, suggests that the converse may also happen. Steven Frank from the University of California, Irvine, and Marsha Rosner from the University of Chicago, propose that it may often be the case that a few cells become resistant before any genetic change, and then later...

2012-04-02 12:53:53

A second mutation found in the tumors of patients with BRAF-mutated metastatic melanoma does not contribute to resistance to BRAF inhibitor drugs, a finding that runs counter to what scientists expected to be true. The study by researchers at UCLA's Jonsson Comprehensive Cancer Center found that patients with the mutations in both the MEK1 and BRAF genes respond as well to the inhibitors as patients with the BRAF mutation alone. Another surprising finding is that the MEK1 and BRAF...

2012-03-26 09:30:50

From miniature elephants to monster mice, and even Hobbit-sized humans, size changes in island animals are well-known to science. Biologists have long believed that large animals evolving on islands tend to get smaller, while small animals tend to get bigger, a generalization they call "the island rule." A new study by researchers at Duke University and the National Evolutionary Synthesis Center in Durham, NC puts that old idea to the test in island and mainland rodents. "Some of the...

2012-03-19 19:19:07

A new study by University of Notre Dame biologist Michael Pfrender and a team of researchers from the University of Nevada-Reno, Utah State University and the University of Virginia suggests that snakes from different regions of the world have evolved a similar, remarkable resistance to a deadly neurotoxin. The finding, which appeared in the Proceedings of the National Academy of Sciences, greatly increases scientists' understanding of the genetic basis of adaptation and is a model for...

2012-03-15 16:47:00

NEW YORK, March 15, 2012 /PRNewswire/ -- Crunch Fitness, the health club chain known for pioneering a philosophy of No Judgments and making fitness fun, is headed to the Evergreen State with the opening of a new franchise location in Bellevue, WA in Spring 2012. The club will join a multitude of popular businesses in the Crossroads Shopping Mall at 15600 NE 8th Street, Bellevue, WA 98008. Situated just across Lake Washington from Seattle, this 14th franchise club to open worldwide also marks...

2012-03-09 10:48:13

Speeding up evolution may increase genetic variation, but surprisingly it can reduce species diversity, according to a study led by Carlos J. Melian The role of sex in driving genetic variation and generating higher biodiversity has been debated for over a century. Speeding up evolution may increase genetic variation, but surprisingly it can reduce species diversity, according to a study led by Carlos J. Melian from Eawag — Swiss Federal Institute of Aquatic Science and Technology,...

Demise Of Larger Prehistoric Animals Blamed On Climate Change, Humankind
2012-03-06 09:05:44

The death and extinction of many large, prehistoric animals may be due largely in part to man´s actions as well as climate change. The University of Cambridge has conducted new research to determine if humankind played a significant role in the destruction of these prehistoric megafauna. The findings were posted on March 5, 2012 in the journal PNAS. The research team examined extinctions during the late Quaternary period (700,000 years ago to present day) but focused much of their...


Latest Evolutionary biology 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...

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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