Tag: "evolution" at biology news
Lack of potential mates has lead to 'sloppy' gene control and risk of disease for humans
..., rat, mouse and chimpanzee DNA. After 'unwinding' evolution
using statistical techniques, they found that the ...ls. "We are used to viewing us as the pinnacle of evolution
but seeing that rodents control their genes much more precisely is somewhat sobering," said Dr Marti...
Scientists find missing link between whale and its closest relative, the hippo
...incent Sarich, a pioneer of the field of molecular evolution
and now a professor emeritus of anthropology, analyzed blood proteins and saw a close relationship between hippos and whales. A subsequent analysis of mitochondrial, nuclear and ribosomal DNA only solidified this relationship. Though most biologists ...
Yellowstone microbes fueled by hydrogen, according to U. of Colorado study
...e, one of the world's leading experts on molecular evolution
and microbiology, published their report "Hydrogen and bioenergetics in the Yellowstone geothermal system" this week in the online edition of the Proceedings of the National Academy of Sciences. The team's findings, based on several years of resear...
It came from the sea: 'Monster' crabs evolve a bug's nose
...re-invented key aspects of the insect nose through evolution
in order to solve the problem of olfaction in thei...he robber crab is a striking example of convergent evolution
and nicely illustrates how similar needs of very distantly related organisms may cause similar end r...
Study in Royal Society journal on sense of fairness in chimpanzees
...Dr SF Brosnan, Dr HC Schiff and Dr FBM de Waal The evolution
of the sense of fairness may have involved the str...he Netherlands Modelling the thermal evolution
of enzyme-created bubbles in DNA by Dr D Hennig, Dr JFR Archilla and Dr JM Romero One of the key fu...
Chimpanzees show quality of relationship drives sense of fairness
ATLANTA The evolution
of the sense of fairness may have involved the qua...d species to humans, could represent stages in the evolution
of the complex responses to inequity exhibited by humans and may help explain why we make certain de...
UCLA researchers detail the evolution of quantum dot imaging in the journal Science
over the last two decades of the nanocrystals known as quantum dots has seen the growth of this revolutionary new tool from electronic materials science to far-reaching biological applications that will allow researchers to study cell processes at th...
How many comparative genomes are enough?
... many species need to be sequenced to know whether evolution
has conserved a given stretch of DNA? In an artic...hen applied to simulations of realistic nucleotide evolution
patterns. It also accurately predicts results derived from existing genome comparisons. "No one had...
Rice genome approaches completion
... Ka-Shu Wong, provides important insights into the evolution
of rice. The key to the improvement in the genome ...igate the evolutionary history of rice. Central to evolution
is the development of new functions through mutation of existing genes. But when mutations occur in ...
The opportunity for canalization and the evolution of genetic networks
...network. One explanation for this pattern is that evolution
has acted to create genetic networks that are robu... R. Proulx and Patrick C. Phillips investigate the evolution
of genetic networks in response to a variety of genetic and environmental perturbations. The models ...
Wisconsin scientists find portal to show animals evolve
...t is it, exactly, that governs the development and evolution
of form? Is it the genes themselves or the devices...the journal Nature , is that the heavy lifting of evolution
is accomplished through changes in the genetic switches that direct how genes work. "This is smokin...
Researchers at UT Southwestern discover new function for old enzyme
... 3, 2005 In a step toward understanding the early evolution
of the cell, researchers at UT Southwestern Medica...opment of an efficient energy producer to fuel the evolution
of more complex life forms. Because of their supposed microbial origins, mitochondria have...
'Man the Hunter' theory is debunked in new book
...lions of years, a fact that greatly influenced the evolution
of early man. He co-authored the book with Donna ... coexisted with them." Since the process of human evolution
is so long and varied, Sussman and Hart decided to focus their research on one specific species, Aus...
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. "Animal...rage speciation rate for invertebrates. This rapid evolution
is contributing to an "explosion" of new cricket species, especially on Hawaii, the largest and youn...
Grid expectations for networked computing: From global Earth monitoring to black hole detection
...id future In his speech, Laforenza recounted the evolution
of the Grid and e-collaboration concept so far, and how future progress would rely on interoperability standards ensuring different Grids work together: "The Global Grid Forum is the organisation that supports the development of agreements and speci...
Six research units given the go-ahead
...rch, the scientists hope to gain insights into the evolution
of the biogeosphere. Further information Further information on Research Units is available online at: http://www.dfg.de/en/research_funding/coordinated_programmes/research_units/ ....
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...
Experimental domestication of foxes yields clues to cognitive evolution
...ates. However, it has remained unclear whether the evolution
accompanying domestication in dogs occurred as a result of direct selection for communicative ability or instead as a correlated by-product of breeding selection against fear and aggression toward humans. To better understand how dogs evolved their u...
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. A...
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. ...
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