Decoded sea urchin genome shows surprising relationship to man
...sea lilies, and sea cucumbers. Following the great extinction of animals 250 million years ago, the modern sea urchins emerged as dominant echinoderm species. The purple sea urchin emerged in the North Pacific Ocean during a rapid burst of speciation and diversification 15-20 million years ago. There was great...Researchers determine why wolves not dispersing as fast as expected in Yellowstone
...he 1970s, wolves had been systematically hunted to extinction in the lower 48 states in order to protect livestock. But wolves were a keystone species in the area (i.e. they are predators and nobody preys upon them), and, after 30 years of extinction, researchers felt a reintroduction of the species would balan...Scientists find lamprey a 'living fossil'
... modern fish and have survived at least four major extinction events. "There are few representatives of these early branches in vertebrate evolution that are still around today," Coates said, which is why so much scientific attention has been paid to lampreys. Although highly specialized in their own right, th...Biodiversity controls ecological 'services,' report scientists in comprehenisive analysis
...arbara, California) Accelerating rates of species extinction pose problems for humanity, according to a compreh...ecades, we were able to conclusively show that the extinction of species from our planet will change the way pests and diseases are controlled, organic wastes are...Mass extinction's cause: 'Sick Earth'
What really caused the largest mass extinction in Earth's history? USC earth scientists will rev...rch group presenting several new pieces of the P-T extinction puzzle. Matthew Clapham, a recent Ph.D. graduate of Bottjer's laboratory, has found that species di...Bacteria that use radiated water as food
...nean microorganisms were recent arrivals bound for extinction or whether they were permanent fixtures of an unlikely habitat. Also, many scientists have been skeptical of subsurface bacterial communities being completely disconnected from surface ecologies fed by the sun's light. Pratt, Princeton University ge...Fossils pinpoint tropics as Earth's most fruitful biodiversity spawning ground
...rtually every possible combination of origination, extinction and immigration to explain the pattern at one time or another. But for the past 30 years, they have tended to view the tropics either as a cradle of diversity, where new species originate, or as a museum of diversity, where old species persist. And n...Tropics source of much of world's biodiversity
...rigination rates are similar at all latitudes, but extinction rates are higher in the north, making the tropics ...alentine, nearly every combination of origination, extinction and migration differences has been proposed to explain the pattern. "The number of species on Earth...Triple threat: World fin trade may harvest up to 73 million sharks per year
... Fauna (CITES), and 20 percent are threatened with extinction according to the 2006 Red List of Threatened Species. Used in shark fin soup, a delicacy served at Chinese weddings and other celebrations for centuries and more recently at business dinners in Southeast Asia and the Pacific Rim, fins are the most ...USGS at The Wildlife Society: From sea-ice change to contaminants to predators and prey
... the large-scale ecosystem disturbance of the near extinction and subsequent recovery of sea otters from the Pacific maritime fur trade. Throughout much of the coastal northeast Pacific Ocean, otter-dominated ecosystems are characterized by kelp forests whereas otter-free systems are characterized by deforested...Pregnant prehistoric fossil offers clues to past
.... "What it shows is that the Canadian version of extinction of the ichthyosaur has more diversity that anyone thought. Even in their declining years there were a lot more species that we thought." Over the course of ichthyosaur evolution, the limbs were modified as paddles while the pelvis and hind limbs we...Common garden plant threatened by climate change
...men, a common, pretty garden flower, is at risk of extinction because of climate change. In a study published to...these species are considered to be at high risk of extinction due to climate change."...Prozac exposure found to disrupt mussel reproduction
...an freshwater mussels are considered vulnerable to extinction or already extinct. The finding also raises questions about the effect of fluoxetine on other aquatic species that share similar endocrine mechanisms. The research team currently is gathering environmental samples from local waters and sediments to...MIT team describes unique cloud forest
...ncern that the unusual forest could be driven into extinction if hungry camels continue eating too much of the foliage. As the greenery disappears it's possible the trees will lose the ability to pull water from the mist and recharge underground reservoirs. A report on their research was published in a recent...ACS Weekly PressPac -- September 6, 2006
... biohazards Ingredient in Prozac increases risk of extinction for freshwater mussels Brown seaweed contains prom...0 p.m., EDT Ingredient in Prozac increases risk of extinction for freshwater mussels One of the first studies to examine the ecotoxicological effects of Prozac...Ocean seep mollusks may share evolutionary history with other deep-sea creatures
...ore challenging, subject to changes in sea levels, extinction events, pollution, sediment runoff--all sorts of f...el and Little also found little evidence that mass extinction events or periods of low oxygen dealt significant blows to the seep communities. Seeps may have been...Good times ahead for dinosaur hunters, according to U of Penn scientist's dinosaur census
...t on the decline, in the time shortly before their extinction 65 million years ago. Dodson proposes that 1,850 g...e that dinosaur populations were stable before the extinction event that ended their reign of global dominance. Dodson, however, warns that the picture of the fo...New parks to protect animals seen as feasible
...evious research as harboring animals vulnerable to extinction yet unprotected by conservation regulations. Gorenflo and Brandon concluded that many of the gaps, which tend to occur disproportionately in the tropics, on islands, and in mountains, are locations where conservation measures appear feasible, because...3rd Annual AIBS, BSCS, NESCent Evolution Science and Education Symposium
...tal histories and the evolutionary significance of extinction events. Dr. Jablonski has published over 60 peer-reviewed scientific papers and edited three books on paleontology and evolutionary biology. Dr. Jablonski will speak on the "Evolutionary Role of Extinctions and Recoveries in the History of Life."...Insect predation sheds light on food web recovery after the dinosaur extinction
...very of biodiversity after the end-Cretaceous mass extinction was much more chaotic than previously thought, acc...out of balance, not linked as they are today. The extinction took place 65.5 million years ago. Labeled the K-T extinction, it marks the beginning of the Cenozoi...