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Tag: "south" at biology news

New research indicates a 'troubled' greenhouse is brewing

...ead as far north as England and Belgium and as far south as Tasmania and New Zealand," Retallack says. "Turtles, alligators and palm trees graced Ellesmere Island in the Canadian Arctic, which is now the treeless abode of musk oxen and polar bears." The bottom line? A new Ice Age is probably the least of ...

Low level of extinction during ice age linked to adaptability

...o within 35 degrees of the equator, roughly as far south as a line between present-day Raleigh, Memphis and Albuquerque or nearly as far north as Buenos Aires. Powell tackled the question of why extinction rates were so low during that great ice age by closely examining geographic patterns of evolution and...

Africa to take it on chin again with climate change

... in the North, it pulls the Sahelian monsoon cycle south as well, depriving the region of its usual rains. ...ritical to life in much of Africa, shift north and south with the seasons. They normally reach the Sahel from July to September and the southern part of the ...

Butterfly migration could be largest known

...o reach British Columbia by summer, before heading south again in the fall. ...

Climatologists discover deep-sea secret

...he northern hemisphere, and this freshwater in the south sinks to the ocean floor and is transported to the rest of the Atlantic, reducing the salinity of the North Atlantic Ocean and strength of the gulf stream. Nevertheless, the researchers have observed a decrease in the volume of freshwater sinking to ...

Scientists discover global pattern of big fish diversity in open oceans

...e east coasts of the US, Australia, and Sri Lanka; south of Hawaii; and in the South-Eastern Pacific ?provi...e authors. Today the east coast of the U.S., just south of Cape Hatteras and along the east coast of Florida, harbor some of the most important areas for bi...

Bird samples from Mongolia confirmed as H5N1 avian flu

...or a health survey of wild bird populations in the south and north of the country, WCS field vets Drs. William Karesh and Martin Gilbert responded to initial reports of the most recent avian influenza outbreak in Kovsgol Province near the Russian border from the Mongolian Ministry of Food and Agriculture, ...

Leading scientists rank endangered dolphins, porpoises most in need of immediate action

...e dolphins in drift and bottom-set gillnets on the south coast of Zanzibar (Tanzania) * Harbor porpoises in coastal gillnets in the Black Sea * Spinner dolphins and Fraser's dolphins in large-mesh driftnets and purse seines in the Philippines * Atlantic humpback dolphins in coastal gillnets in ...

Canada's first embryonic stem cell lines

...e dolphins in drift and bottom-set gillnets on the south coast of Zanzibar (Tanzania) * Harbor porpoises in coastal gillnets in the Black Sea * Spinner dolphins and Fraser's dolphins in large-mesh driftnets and purse seines in the Philippines * Atlantic humpback dolphins in coastal gillnets in ...

Novel targets found for the development of drugs to complement, or replace, statins

...e dolphins in drift and bottom-set gillnets on the south coast of Zanzibar (Tanzania) * Harbor porpoises in coastal gillnets in the Black Sea * Spinner dolphins and Fraser's dolphins in large-mesh driftnets and purse seines in the Philippines * Atlantic humpback dolphins in coastal gillnets in ...

Virulizin granted orphan drug status in Europe

...e dolphins in drift and bottom-set gillnets on the south coast of Zanzibar (Tanzania) * Harbor porpoises in coastal gillnets in the Black Sea * Spinner dolphins and Fraser's dolphins in large-mesh driftnets and purse seines in the Philippines * Atlantic humpback dolphins in coastal gillnets in ...

Research suggests fitness of Florida panthers improved by limited breeding with Texas animals

...st, hybrid offspring have been moving successfully south and east into new sections of the Everglades National Park and Big Cypress National Preserve, he said. Pimm, whose research group works in the Everglades each year, said some scientists have erroneously tended to "look at a map and say, 'because th...

Neanderthal teeth grew no faster than comparable modern humans'

... and western Asia . Remains have been found as far south as Iraq and as far north as Great Britain . Fossil skulls reveal the distinctively prominent brows and missing chins that set them apart from later humans. They thrived from about 150,000 to 30,000 years ago until their lineage failed for as-yet un...

Disappearing arctic lakes linked to climate change

... remains intact, lake area did not increase in the south where permafrost is warming." In permafrost regions, summer thaw produces meltwater, which is typically unable to infiltrate into the ground because of the ice-rich frozen soils found in permafrost. Data gathered from the latest measurements indicat...

Human brain is still evolving

...st and west due to human migrations, as opposed to south to Africa because of geographic barriers. Or, they could have arisen in Africa, and increased in frequency once early humans migrated out of Africa." While the roles of Microcephalin and ASPM in regulating brain size suggest that the selective press...

Biologist Discovers What May Be World’s ‘Pickiest?Mates

...ns in the Sweetwater River estuary in Chula Vista, south of San Diego, near the Mexico-U.S. border. She said previous studies of mate selection in other animals, such as birds and the natterjack toad, found that females of most species typically sampled only a handful of potential mates before making a fin...

New genetic test can detect clam disease

...se called QPX occurring in clam beds from Cape Cod south to Virginia and north to Canada. Although it does not affect humans and it is not as well known as red tide, the disease can have a significant impact on a local economy by killing clams and devastating shellfish harvests and commercial aquaculture ...

Seaweed yields new compounds with pharmaceutical potential

...llow coral reef along the coastline of Fiji in the south Pacific Ocean. Some of these natural compounds showed the potential to kill cancer cells, bacteria and the HIV virus, according to research at the Georgia Institute of Technology. In fact, two of them exhibit anti-bacterial activity towards antibiot...

Finding rewrites the evolutionary history of the origin of potatoes

...n the broad distribution of potatoes from north to south across many different habitats, through morphological resemblance of different wild species to cultivated species, and through other data. Our DNA data, however, shows that in fact all cultivated potatoes can be traced back to a single origin in sout...

Sahara's edge studied from ground, air and space to improve water management

...s have significant differences: Ben Gardane to the south suffers from wind erosion and its groundwater is u...econd working area, the Iullemeden aquifer located south of the Sahara and stretching over the territories of Mali, Niger and Nigeria. Aquifer project federa...

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