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Latest Evolutionary biology Stories

Competition Of Males Over Females
2012-10-25 12:18:31

An evolutionary engine of genital evolution When a female mates with several males, these will compete over the fertilization her eggs. This is an important evolutionary force that has led to the evolution of a diversity of male sexual organ morphologies. This is revealed in a study of seed beetles published today in the leading scientific journal Current Biology. In higher plants, the influential classification system developed by Carl von Linnaeus relied on the fact that the...

Fossil Record Helps Determine Extermination Risk In Marine Animals
2012-10-24 10:27:12

Brett Smith for redOrbit.com - Your Universe Online Conservationists have warned for years that rare species have the highest risk of becoming endangered or extinct, but the word “rare” could have several different meanings with respect to the distribution of particular species. An international team of researchers from Stanford University in California and Humboldt University in Berlin decided to parse the definition of “rare” with respect to conservation and...

2012-10-23 14:13:21

Researchers from North Carolina State University have increased the potency of a compound that reactivates antibiotics against methicillin-resistant Staphylococcus aureus (MRSA), an antibiotic-resistant form of Staphylococcus that is notoriously difficult to treat. Their improved compound removes the bacteria´s antibiotic resistance and allows the antibiotic to once again become effective at normal dosage levels. NC State chemist Christian Melander had previously proven the...

2012-10-23 10:18:13

Like job-seekers searching for a new position, living things sometimes have to pick up a new skill if they are going to succeed. Researchers from the University of California, Davis, and Uppsala University, Sweden, have shown for the first time how living organisms do this. The observation, published Oct. 19 in the journal Science, closes an important gap in the theory of natural selection. Scientists have long wondered how living things evolve new functions from a limited set of genes....

Permian Extinction Was Beginning Of 5-Million-Year Deadly Heat Wave
2012-10-19 09:27:25

Lawrence LeBlond for redOrbit.com - Your Universe Online Life about 250 million years ago was hard to come by. In fact, it was nearly non-existent. Scientists, studying why this period, known as the end-Permian event, lasted so long and have found a key ingredient: heat. Paul Wignall, a paleontologist at England´s Leeds University, and study coauthor, said during the 200,000-year-long Permian extinction the Earth began cooking, with life struggling to thrive, especially at the...

New Concept Dramatically Alters Theory Of Animal Evolution
2012-10-13 08:10:50

April Flowers for redOrbit.com - Your Universe Online New work by Dr. Stuart A. Newman, professor of cell biology and anatomy at New York Medical College, develops a concept that dramatically alters one of the basic assumptions of the theory of evolution. The assumption is that survival is based on a change's functional advantage if it is to persist. Newman, whose life's work has supported the theory of evolution, offers an alternative model where he proposes that the origination of...

8 Legs And A Baby
2012-10-13 05:32:33

Alan McStravick for redOrbit.com - Your Universe Online The idea of the stay-at-home-dad has been getting its legs lately. Sure, we started off with quaint 80´s comedies, like ℠Mr. Mom´ and ℠Three Men and a Baby´, but, like the subject of this article, we are slowly evolving past focusing on the hijinx and silliness of the situation and viewing the caring paternal relationship in a more real light. We have experts, pundits and private-citizens who are arguing the...

2012-10-11 12:57:01

Experimental studies of ancestral visual pigments and their mutational variants cast doubt on simplifying assumptions widely used in evolutionary studies of proteins A key assumption that biologists have relied on widely over the past quarter-century in studying the evolution of protein molecules is "highly questionable," according to an article published in the November issue of BioScience. The article, by Shozo Yokoyama, a vision researcher at Emory University, summarizes experimental...

Evolution Of Complex Brains
2012-10-11 04:52:39

April Flowers for redOrbit.com - Your Universe Online Anatomically complex brains evolved earlier than previously thought and have changed little over the course of time, according to a new study by University of Arizona neurobiologist Nicholas Strausfeld. The specimen described in the study, which will be published in the October 11 issue of Nature, is the earliest known fossil to show a brain. The three inch long fossil was discovered embedded in mudstones deposited during the...


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
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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