Tag: "extinct" at biology news
Duke Primate Center Sets October Expedition To Find 'Juliet'
...adagascar,and naturalists believe they will become extinct
within a decade. The expedition aims to capture three diademed sifakas -- a mate for Romeoand another breeding pair. Once captured, the animals will be temporarilyhoused at the Ivoloina Zoological Park in Madagascar, where they will begradually accl...
'Juliet' Evades Primate Center Expedition
...ptive breeding colony of the animals beforethey go extinct
from hunting and habitat destruction. In fact, sa...uracy of estimates that thediademed sifaka will be extinct
in about 20 years. According to Glander, the researchers were particularly surprised at thereduced ...
New Evidence For Corn's Ancestry Could Lead To Insect And Drought Resistant Crops
... cross between perennial Zea diploperennis and an extinct
line of early corn. Domesticated corn then arose from crossesbetween that corn and the new annual teosintes. Most other experts believe natural genetic mutations actually causedthe spikes of some wild teosinte plants to directly evolve into the firs...
Coming Extinction Of One Of UK's Most Minuscule Plants Yields Information On Climate Change
...arly insignificant plants seems to about to become extinct
in this country but in its death throes it is prov...ems likely that the Iceland Purslane could become extinct
in Britain. The loss of such an insignificant little plant is not likely to cause high drama in the...
Fossils Show British Columbia Was Once 2,000 Miles South
...e that the discovery of pearly fossil shells of an extinct
mollusk on twoislands off the eastern coast of Vancouver Island give clear evidence that theregion was once nearly 2,000 miles to the south. "Everything that we now recognize as coastal British Columbia was onceoff the coast of what is now M...
Limits Of Life On Earth: Are They The Key To Life On Other Planets?
...s of years apart. The researchers hope to uncover extinct
genes or gene fragments to compare with modern counterparts. What is the telltale signature of past life in extreme environments? The University of Rochester's Ariel Anbar and colleagues will study whether stable isotopes of key metabolic metals f...
Skull Of Refrigerator-Size Ancient Armadillo Finds A Home At UF
...y became extinct." Giant armadillos became extinct
in Florida about 9,800 years ago, a period of dram... a biological illustrator specializing in painting extinct
Pleistocene mammals, who found rabbit bones and armadillo shells sticking out of the vertical limest...
Amphibian Mortality Due To UV Radiation
...declining populations, with several speciesalready extinct
and others showing alarming rates of deformities. No singlecause has been identified. Some scientists believe habitat disturbances are toblame, although declines have occurred in relatively undisturbed areas. Now, field experiments in the ...
Scientists Unearth Remains Of A Predatory Dinosaur In Madagascar
...al investigator on that project, designed to study extinct
and modern-dayanimals in an effort to reconstruct soft tissues not preserved in the fossilrecord. - 30 - Contacts: Lawrence Witmer, Ohio University, (740) 593-9489; email@example.com Scott Sampson, New York Institute of Technology, (516) 686-3807...
Molecular "Fossils" Of Early Life
...ical catalysts, eventually drivingmost RNA enzymes extinct
and relegating RNA to a more limited role." The discovery that nucleic acids can raid the tool box of proteins means"the RNA World could have been a very sophisticated place," Breaker said. "Theearliest RNA could have had access to all of th...
Wildlife Dying At The Doorsteps Of World's National Parks, Study Says
...he farthest distancesare the most likely to become extinct
regardless of population density. Forexample, wild dogs which have extremely large home ranges, have already vanishedfrom several protected areas in Africa. Conservation biologists have long practiced under the theory thatpopulations may be ...
New Knowledge From Old Dung
...ings / DNA remnants give insight into habits of extinct
animals Using the most modern technique...as an important milestone in the examination of extinct
species, in the current issue of the U.S. journal Science (Vol. 281, 17 July 1998) . DNA coul...
Human Ancestors Went Out Of Africa And Then Came Back: NYU/SUNY-Albany Research Team Proposes Controversial New Model for Evolution of Humans
...events out of Africa to account for all living and extinct
hominoid species inEurasia. Disotell and Stewart's model -- which requires only two hominoidmigration events -- is a more parsimonious model; and therefore, they assert, amore plausible one. Caro-Beth Stewart, an associate professor of biology at Al...
Whitehead Study Supports Existence Of Ancient RNA World, Helps Provide Insight Into Early Evolution Of Life
...uld have existed during the RNA erabut have become extinct
since. In the past five years, Dr. Bartel and his colleagues have used themethod of making trillions of RNA go through test-tube evolution (a technologythat selects for the fittest molecules and introduces errors in successivegenerations of...
New Studies Shed Light On Facial Features Of Popular Dinosaurs
...uld haveimplications on scientists who study these extinct
animals and the toymanufacturers, movie set design...sic comparative anatomy. "When you work on extinct
animals, there is a pressure and a sinceredesire to know what these animals looked like," Witmer say...
Killer Whales Have Begun Preying On Sea Otters, Causing Disruption Of Coastal Ecosystems In Western Alaska
...f the Aleutian archipelago. Sea otters were nearly extinct
by the early 20th century due to overhunting forthe fur trade. Protection from hunting allowed a steady recovery, and many areasof their historic range had thriving populations by the early 1970s. Estes andother researchers studying the species' reco...
Greater Prairie Chicken Appears On Comeback Trail In Illinois
...rom Canada to Texas. Theyare considered virtually extinct
in Canada; their southern cousin, the Attwaterprai...irie. An easternrelative, the Heath Hen, has been extinct
since 1931. The current range of thegreater prairie chicken is from northwestern Minnesota south to...
Oldest Ice Core From The Tropics Recovered, New Ice Age Evidence
... Sajama, a 21,463-foot (6,542-meter) extinct
volcanotowering over the Bolivian Altiplano, a vast plateau that covers79,151 square miles (205,000 square kilometers) of Boliviandesert. They used a solar-p...
Bones of Crocodile-like Beasts Tell Tale of Global Warming
...ones that belonged to an eight-footchampsosaur, an extinct
crocodile-like beast with a long snout and razor-sharp teeth. Theteam found bones from several champsosaurs, as well as fish and turtles, inrocks scattered over several hundred thousand to a few million years. Thereptiles, which were tied to their fr...
Fossil Eggshells Hold Clues To Major Animal Extinctions As Reported In Science
... extensive shrubland for food. Infact, most of the extinct
megafauna were browsers of trees and shrubs rather...e same time-for thesame reasons-as the rest of the extinct
Australian megafauna. But recentlyMiller's group has begun to investigate sites that contain both G...
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