Tag: "extinct" at biology news

African predator rediscovered in Tanzania

...e Miss Waldron's red colobus monkey - was declared extinct in 2000 after an extensive survey in the monkey's former Central African habitat failed to find any evidence of its persistence. Apart from the assumption that the Lowe's servaline genet is - like other servaline genets - nocturnal and tree-dwelling...

Deer flies a biting problem? Oddly, 'trolling' may be just the ticket

... it appeals to their genetic memory of a tasty but extinct animal. But more likely, he said, the blue contrasts sharply with the predominant background of green foliage, making it easy for the deer flies to zero in on. The optimum size and height, meanwhile, are close to the head of a person or large animal....

Dipsticks for water testing, right whale future grim, marine law center established

...s they are today, the northern right whale will be extinct by the year 2202, say WHOI Sea Grant biologist Hal Caswell and his graduate student, Masami Fujiwara. But there is hope for the endangered creatures. According to their model, extinction can be prevented if two female deaths are prevented per year...

A mane is a pain, but worth it for male lions

...e mostly maneless. But males of two subspecies now extinct in the wild, the Barbary lion of the Atlas Mountains and the Cape lion of mountainous regions of South Africa, sported giant dark manes that covered their stomachs. "On a broad scale, it's been known for at least a century that lions in colder clima...

Dinosaur ancestor's vision possibly nocturnal

...nd other animals and obviously were present in now extinct species," says senior author Thomas P. Sakmar, M.D., head of Rockefeller University's Laboratory of Molecular Biology and Biochemistry. "Recreating the inferred visual pigments of the archosaur ancestors in the laboratory should be a first step towar...

Endangered chimpanzees focus of urgent action

...ies -- Benin, the Gambia and Togo -- and is almost extinct in four other countries -- Burkina Faso, Ghana, Guinea Bissau and Senegal. Current estimates of western chimpanzee populations are at about 4 percent of an original 600,000 across its range of 13 West African countries. The majority of western chimp...

Duke ecologist's book offers hopeful view of Earth's plight

...with museum specimens of two of the most prominent extinct birds -- the Carolina Parakeet and the Passenger Pigeon: "I found myself opening cabinet doors and pulling out a long gray tray," he wrote. "At the back, side by side, lay single specimens of the pigeon and parakeet. The Passenger Pigeon was much la...

UCLA study shows water reclamation could become an important source of future water supplies

...imal species and 34 plant species that have become extinct in recent decades." Indeed, the California grizzly bear -- the official state animal -- and the gray wolf have become extinct, and the California condor teeters on the edge of extinction. Rundel cited various ways in which increased development nega...

Life in a greenhouse world

...roposal of Charles Dismukes and coworkers that now extinct bacteria were performing oxygen-based photosynthesis before cyanobacteria came onto the scene. In a CO2 dominated world, these early oxygenic photosynthesizers split bicarbonate instead of water as the source of oxygen. They apparently boosted organi...

Field Museum plays key role in massive project to map Tree of Life

...he evolutionary relationships between all species, extinct and living. These three projects (listed below) will focus on birds, spiders, and archosaurs (birds, dinosaurs, pterosaurs and crocodiles). They represent more than half the $12 million that NSF awarded for the first year of the Assembling the Tree ...

GSA release 02-55: Dec. Geology & GSA Today media highlights

...ents the changes in provinciality of conodonts, an extinct group of early marine vertebrates, during the Late Ordovician and Early Silurian periods (about 460 to 430 million years ago). During this time, the microcontinent of Avalonian drifted northward from cool, high temperate latitudes into the tropics to...

January GSA BULLETIN media highlights

...t to environmental change than others: some became extinct during the cooling others during the warming episode. Genesis of flood basalts and Basin and Range volcanic rocks from Steens Mountain to the Malheur River Gorge, Oregon Victor E. Camp, Department of Geological Sciences, San Diego State University,...

Field Museum uncovers evidence behind man-eating; revises legend of its infamous man-eating lions

...ions continues today. "For most of their history, extinct and living humans, have represented little more than a vulnerable, slow moving, bipedal source of protein for big cats," says Julian Kerbis Peterhans, associate professor of Natural Science at Roosevelt University, Field Museum adjunct curator and co...

Plant pathologists unpeel rumors of banana extinction

... MN (February 14, 2003) Will bananas really become extinct within the next decade? Not likely says a plant pathologist with the American Phytopathological Society (APS). The plant pathologist is speaking out in response to an article that recently appeared in New Scientist depicting possible extinction due ...

Leatherback sea turtles careening towards extinction

...change and asteroid impacts, but they could become extinct in the next 10-20 years unless sufficient internat...t the Malaysian and Costa Rica populations will go extinct in the next 3 to 30 years. Even in the Indonesian rookery, nesting females have declined fivefold ov...

Scientists find evidence for crucial root in the history of plant evolution

... time to fossils, a team of researchers studied an extinct plant species called Asteroxylon thought to be one of the first plants to inhabit the land of the early continents. The new method, which allows scientists to analyze fossils without altering their spatial context, could provide paleontologists a ...

Speedy elephants use a biomechanical trick to 'run' like Groucho

...biomechanical tricks that help large animals, from extinct dinosaurs to obese people, overcome the physical f...r. They focused on an extant biggie rather than an extinct one: the Asian elephant (Elephas maximus), which can tip the scales at more than 4 tons. From Afric...

Top 25 turtles on death row

...ally endangered species are at great risk of going extinct within the next 20 years--unless we take immediate...urtle species and subspecies having already become extinct at the hands of modern man, and fully two-thirds of the remaining species under great threat, we hav...

Ancient pollen yields insight into forest biodiversity

...e, as random chance caused different species to go extinct in some areas but not others. Some sites, just by chance, should come to be dominated by one species, while others would come to be dominated by another species. However, the researchers found that variance among the sites did not increase over the m...

The Year of Biodiversity and Conservation

.... Much of this research has focused on describing extinct and living plants and animals, of which some 1.7 m...nary relationships between all species living and extinct helps scientists understand the origins of biodiversity. The Field Museum plays a major role in th...

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