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Tag: "deserts" at biology news

New research indicates a 'troubled' greenhouse is brewing

...year to 26 inches per year. As a result, sagebrush deserts of the western U.S. were transformed into sub-humid woodlands." Retallack agrees with previous research indicating that the cause of the late Paleocene greenhouse spike, which lasted less than half a million years, was a catastrophic release of natu...

Small species back-up giant marsupial climate change extinction claim

...itions that decreased wooded habitats and expanded deserts and grasslands, but researchers are still not clear what impact it had on fauna. The Darling Downs contain some of the most extensive and significant Pleistocene megafauna deposits in Australia but because it's been excavated since the 1840s it was ...

Scientists analyze chromosomes 2 and 4

...uence. These regions of the genome are called gene deserts because they are devoid of any protein-coding genes. However, researchers suspect such regions are important to human biology because they have been conserved throughout the evolution of mammals and birds, and work is now underway to figure out their...

Proposal would allow wild animals to roam North America

...a ) -- an antelopelike animal found throughout the deserts of the American Southwest -- developed such blinding speed, clocking in at around 60 miles an hour. Introducing free-ranging African cheetahs back to the Southwest, the scientists assert, could restore strong interactions with pronghorns and provide ...

Geckos: It's not always about sex

...of another kind of parthenogenetic lizard from the deserts of the United States showed the opposite pattern." Added Autumn: "If there was an Olympic team of Bynoe's geckos, there wouldn't be a single male on it. These geckos outperform their sexual relatives by 50 percent. They are the 'Xena: Warrior Prince...

Iron critical to ocean productivity, carbon uptake

...e wind. Windstorms blowing sand and dust off large deserts are a major source of iron for the world's oceans. "It's like dumping a load of Geritol or some other iron supplement into the water." Three large areas appear limited by a lack of iron, the researchers say ?the southern ocean around Antarctica, th...

Colombian frog believed extinct found alive

...d Childhood made the discovery in early May in the deserts of Sarna and Toquilla in Boyacá in eastern Colombia. The painted frog, which is found only in the deserts of Colombia's highlands, was last seen in 1995 in the area of Siscunsi, in the same region as Boyacá...

Asia's odd-ball antelope gets collared

... "Otherwise, we will have only an empty steppe and deserts with no any saiga. Future generations will never forgive us for our carelessness."...

Mapping the mouse genome

...motif, CCTCCCT, corresponding to mouse jungles and deserts was conserved among rats, dogs, and chimpanzees, as well as humans. This new, improved mouse genetic map has already yielded valuable information on how factors such as chromosome, chromosomal location, sex, and sequence composition are related to...

Human genetic 'deserts' are teeming with significant life

...areas of the human genome previously thought to be deserts are in fact teeming with life, a scientist will tell the annual conference of the European Society of Human Genetics today (Tuesday 19 June). Most known human genes in the genome map are still incompletely annotated, says Professor Alexandre Reymond...

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