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Tag: "evolution" at biology news

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

New keys to understanding the evolution of life on Earth may be found in the microbes and minerals vented from below the ocean floor, say scientists at the University of California, Santa Barbara. The UCSB scientists are making new contributions to this field of inquiry in their studies o...

W.M. Keck Foundation funds study of friendly microbes

...ects to allow researchers to better understand the evolution and diversity of life on Earth, as well as help create new methods to diagnose and treat patients with common and uncommon diseases. "The CGS represents a community of faculty and students with expertise in the biological, computational and physical...

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

...ce, one ofthe world's leading experts on molecular evolution and microbiology,published their report "Hydrogen and bioenergetics in the Yellowstonegeothermal system" this week in the online edition of the Proceedingsof the National Academy of Sciences.The team's findings, based on several years of research at ...

Recent breakthroughs in common adult leukemia highlighted in New England Journal of Medicine

...nifying hypothesis for the development, growth and evolution of the disease, and complete the review with a discussion of the clinical implications for practicing physicians. ...

Ancient olfaction protein is shared by many bugs, offering new pest control target

...uence has been conserved over 250 million years of evolution but that the gene's function in olfaction has also been conserved. Future designs of pesticides and disease-controlling insect repellents may be able to utilize this commonality to "blind" the insects to the smell of their prey. Walton D. Jones, Thu...

The secret lives of whales

... If we want to understand the nature of life ?what evolution can do—we must understand these habitats before extinctions occur.?/p> Blue Voices from the Deep Cornell researcher Christopher W. Clark studies ocean voices. Using the U.S. Navy’s anti-submarine listening system from the cold war, and customize...

A bacterial genome reveals new targets to combat infectious disease

...he Wolbachia genome of Brugia malayi: Endosymbiont evolution within a human pathogenic nematode. PLoS Biol 3(4): e121. ...

Same mutation aided evolution in many fish species, Stanford study finds

...s work is part of a larger study to understand how evolution generates major morphological and physiological changes. "We want to learn how evolution works on a large scale," he said. In previous work, his group found that several species of stickleb...

Researchers trace evolution to relatively simple genetic changes

In a stunning example of evolution at work, scientists have now found that changes in... bring new data to long-standing debates about how evolution occurs in natural habitats. "Our motivation is to try to understand how new animal types evolve in ...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

In a stunning example of evolution at work, scientists have now found that changes in... bring new data to long-standing debates about how evolution occurs in natural habitats. "Our motivation is to try to understand how new animal types evolve in ...

Scientists document complex genomic events leading to the birth of new genes

...ene duplication is known to play a leading role in evolution for the creation of new genes," explained Francesca Ciccarelli, Ph.D., lead author on the study. The key to this, however, is that the duplicated copies of genes very quickly evolve functions that are significantly different than those of their proge...

Duke Chemists Isolating Individual Molecules Of Toxic Protein In Alzheimer's, Parkinson's Disease

...r monomers might, or might not, be involved in the evolution of fibrils, They can thus develop a better understanding of amyloid aggregation. The scientists are also seeking the precise point during fibril formation when interactions between monomers become irreversible. Defining that point is important becau...

Falling ants glide back to trunk to avoid dangers of forest floor

...covery doesn't necessarily say something about the evolution of flight in terms of insect lineages, but it does give us good information about what kinds of morphologies are involved in the transition from just parachuting, or just falling uncontrolled, to being able to control where you land," Yanoviak said. ...

Family trees of ancient bacteria reveal evolutionary moves

...shington University in St. Louis has proposed that evolution is the primary driving force in the early Earth's ...under sediments to avoid the light." To study the evolution of Cyanobacteria, Blank drew up a backbone tree using multiple genes from whole genome sequences. Ad...

Scientists find fossil proof of Egypt's ancient climate

...00 to 400,000 years ago was a critical time in the evolution and dispersal of African hominins. Our climate data from this 130,000-year-old humid event suggest that this would have been a particularly good time for a northward migration through Africa following reliable water resources, since it seems to be th...

Sexual cooperation: Mating increases longevity in ant queens

...sexual conflict is a powerful driving force in the evolution of reproductive biology for many animal species. Males often try to manipulate their female mates during copulation--for example, by traumatic inseminations (as in the case of bed bugs) or by the transfer of toxic seminal fluids (as in the case of th...

Cricket's finicky mating behavior boosts biodiversity

...hed light on the role of individual choices in the evolution of species and the growth of biodiversity. "Anima...rage speciation rate for invertebrates. This rapid evolution is contributing to an "explosion" of new cricket species, especially on Hawaii, the largest and youn...

Great White shark evolution debate involves WSU Lake Campus geology professor

...ntly underway in the scientific community over the evolution of the Great White shark, and Chuck Ciampaglio, Ph.D., an assistant professor of geology at the Wright State University Lake Campus, is right in the middle of it. The issue is if the Great White, one of the most feared predators of the sea, evolved ...

Low level of extinction during ice age linked to adaptability

...ce age by closely examining geographic patterns of evolution and extinction in brachiopods, simple shelled sea ...ed a database that charted latitudinal patterns of evolution and extinction through the late Paleozoic. "This database is the first ever; no other database of t...

Light therapy may combat fungal infections, new evidence suggests

...cation that the fungal light sensor arose early in evolution and may be shared by many extant fungal species. O...tion, Heitman said. The researchers speculate that evolution of these light-sensing genes more than 400 million years ago may have had major significance for fun...

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