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Latest Evolution Stories

2014-01-08 17:11:35

A new study compares the relative rate of molecular evolution between humans and chimps with that of their lice. The researchers wanted to know whether evolution marches on at a steady pace in all creatures or if subtle changes in genes – substitutions of individual letters of the genetic code – occur more rapidly in some groups than in others. A report of the study appears in the Proceedings of the Royal Society B. The team chose its study subjects because humans, chimps and their...

Researchers Discover Molecular Causes For Sex Determination In Honey Bees
2013-12-31 06:56:40

redOrbit Staff & Wire Reports – Your Universe Online New research appearing in the December issue of the journal Cell Biology puts together the final pieces in a puzzle 200 years in the making – determining the molecular evolution in the genes that separate male honey bees from female ones. Lead author Martin Beye, a professor with the Institute of Evolutionary Genetics at the University of Düsseldorf, and his colleagues studied 14 natural sequence variants of the complementary...

Evolution Of Species Does Not Always Follow Darwin's Theories
2013-12-23 04:19:44

redOrbit Staff & Wire Reports - Your Universe Online Evolutionary scientists have long argued that species that live together must evolve in different ways in order to avoid direct competition with each other, but new research published Sunday in the journal Nature suggests otherwise. A team of researchers led by Dr. Joe Tobias of Oxford University's Department of Zoology studied ovenbirds, one of the most diverse families of birds in the world, in order to conduct an in-depth...

2013-12-16 12:00:42

Findings may be useful in design of future drugs and catalysts The theory of evolution suggests that present-day organisms evolved from earlier life forms. At the molecular level, evolution reshaped some of the enzymes that help complete chemical processes—such as converting food into energy—in humans and all other life forms. Now a University of Iowa researcher and his colleagues describe the evolution of various forms of the enzyme “dihydrofolate reductase” as it occurred...

Blind Cavefish Offer Evidence For Long-debated Mechanism Of Evolutionary Change
2013-12-13 11:16:07

Marine Biological Laboratory In a blind fish that dwells in deep, dark Mexican caves, scientists have found evidence for a long-debated mechanism of evolutionary change that is distinct from natural selection of spontaneously arising mutations, as reported this week in the journal Science. The eyeless cavefish Astyanas mexicanus is "a special system in which we can look at evolution in action," says article co-author William Jeffery, a senior adjunct scientist at the Marine Biological...

2013-12-10 23:31:04

GlexSoft, a developer of powerful and fast email conversion tools for nearly all major email clients, announces the immediate availability of a new version of Thunderbird to Outlook Converter, one of its most popular products that helps transfer Thunderbird to Outlook in just a few mouse clicks. The new version of the program features a host of improvements and optimizations that result in higher conversion speed and reliability. San Diego, CA (PRWEB) December 10, 2013 GlexSoft LLC, one...

Hydra magnipapillata
2013-12-09 05:03:37

redOrbit Staff & Wire Reports - Your Universe Online While we tend to equate youth with strength and old age with weakness, new research appearing in the journal Nature reveals that frailty during the later years of life is not a fixed law of nature, and that some species actually become stronger and less likely to die as they age. Experts from the University of Southern Denmark looked at the aging process in 46 vastly different types of creatures, including mammals, plants and...

Extreme Genomic Evolution Discovered In Burmese Pythons
2013-12-03 07:05:43

[ Watch the Video: Genomics Reveal The Evolution Of Snakes ] April Flowers for redOrbit.com - Your Universe Online A team of researchers have sequenced the genome of the Burmese python, or Python molurus bivittatus, finding large numbers of rapidly evolved genes in snakes. Their findings, published in Proceedings of the National Academy of Sciences (PNAS), reveal that these genetic changes are linked to extreme characteristics in snakes. The discovery of these characteristics,...

2013-11-19 17:00:07

Why do crosses between closely related species fail to produce fertile hybrids? A new study shows that differences in the levels - not necessarily the sequences - of certain key proteins are crucial in mediating reproductive isolation. Two individuals are defined as belonging to the same biological species, if matings between them give rise to viable and fertile offspring. Crosses between closely related, but already distinct, species produce hybrid offspring that are either inviable or...

2013-11-19 13:16:54

An original model that would explain how regions of the genome that are copied later on facilitate the birth of new genes with specific functions in tissues and organs One of the most important processes in the life of cells is genome replication, which consists of making exact copies of the DNA in order to pass it on to their offspring when they split. In most organisms, from yeast to human beings, genome replication follows a set plan, in which certain regions of the genome replicate...


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
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'