Tweedle coat fashions stocky flies
University of California, San Diego biologists have discovered that disruptions in genes they call Tweedles make fruit flies short and stout like Tweedledee and Tweedledum in Alice in Wonderland. They report in this week's issue of the journal Proceedings of the National Academy of Sciences that...Assessing ecosystem services to identify conservation priorities
...s on wild lands continue to escalate, conservation biologists are seeking win-win approaches based on the notion that ecosystems provide numerous economic benefits--wetlands mitigate flooding, for example--to a wide variety of beneficiaries. By quantifying these ecosystem services and the "opportunity" costs of...Bee genome information housed at Texas A&M University
...e of honey bee pollination," he said. "Honey bee biologists would have to go to a lot of trouble to sequence in their labs every single gene they are interested in," Elsik said. "They can go to our Web site and download the sequence. It saves them a lot of work." Elsik's Web site is http://racerx00.tamu.ed...Interdisciplinary grant to Yale: Creating nanodevices for delivery of vaccines
... -- A team of Yale biomedical engineers and cell biologists received a $1-million award from the National Science Foundation to develop "smart nanoparticles" for the delivery of vaccines. Led by Tarek Fahmy , assistant professor of biomedical engineering, the team will apply the two-year, Nanoscale Interdi...Scientists' cell discovery unearths evolutionary clues
... The York and Dundee teams have worked with field biologists in Germany, the US and Japan, and their research is published today (Friday 27th October 2006) in the prestigious international journal Science. The published paper shows for the first time the family tree of all known social amoeba species and the...ACS News Service Weekly PressPac -- Oct. 18, 2006
...omenon first discovered in the 1970s by a group of biologists who were exploring bioluminescent bacteria found in squid. By the 1990s, the concept of bacterial conversations had stimulated new research efforts after the process was observed in other species of bacteria, particularly pathogenic species, Everts n...Female pronghorns choose mate based on substance as well as show
...cues that may indicate genetic quality. Until now, biologists have focused on elaborate ornaments, such as the peacock's tail, as cues that females might use. The thorny problem has been to explain how the correlation between male genetic quality and ornament quality can be maintained. If an ornament gives a m...In early embryos, cilia get the message across
...right and what's left has fascinated developmental biologists for a long time. The turning point came when the r...ch," says Belmonte. Cilia have been known to cell biologists for over a hundred years. Belmonte is convinced that these humble structures, which have until recen...Scientists prove that parts of cell nuclei are not arranged at random
...ay in PLoS Computational Biology, involved systems biologists working together with mathematicians to identify, ...ife of the cell. The research began with a team of biologists in Canada labelling components inside cell nuclei with fluorescent dyes, which enabled them to ident...Special chip provides better picture of salmon health
... This is a question which has troubled farmers and biologists for years, but now scientists may have come up with the answer - using DNA chips. By studying the genes of Atlantic salmon scientists from three UK universities are developing a DNA chip to monitor the health and performance of salmon, a tool which c...Embryo fossils reveal animal complexity 10 million years before Cambrian Explosion
... to paleontologists and evolutionary developmental biologists interested in the evolution of animal species during and prior to the Cambrian Explosion, a dramatic time period in which animals became bigger, more diverse, ecologically dominant and, in the late Stephen J. Gould's opinion, a lot more wonderful....First Biodiversity Census of coral reef ecosystems in the NW Hawaiian Islands
...ument's natural resources." The taxonomists, biologists specializing in the classification of these organisms, are donating their time and considerable expertise. "We plan to provide for the State of Hawaii a baseline record of the diversity of a relatively pristine area in order to have some basic workin...Texas researchers casting for answers to stop algae problem in Texas lakes
...ildlife Department biologists. "Bloom" is the term biologists use to describe a huge increase in the number of these one-celled plants in a given area. Each year since 2001, the golden hues in water and the telltale dead fish in numerous Texas lakes have puzzled water and fish experts, Roelke said. So far mor...UCR-led research team receives $5 million grant to study interaction of ecology and evolution
...team will focus on guppies small fresh-water fish biologists have studied for long that coexist in the stream with Hart's killifish, a predator. The team will examine not only what causes the guppies to evolve as they might but also the co-evolution of the killifish. "We know the fish are evolving, but the ...Fossils pinpoint tropics as Earth's most fruitful biodiversity spawning ground
... has loomed as one of the largest questions facing biologists for more than a century. Biologists have proposed virtually 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...New bird discovered on unexplored Columbian mountain
...-finch was described by an Anglo-Colombian team of biologists including Thomas Donegan (Fundacin ProAves) and Blanca Huertas (Natural History Museum and University College London), following their leadership of the first biological exploration of the Yarigues mountains. The description was published in the June...Rutgers-led group lands $2.55 million to advance high school biology and math
...ce teaching in high schools. "Not only do aspiring biologists need solid math grounding, but mathematics students need to see the breadth of applications and career opportunities available to them." Cozzens and Roberts last year organized the first DIMACS conference on linking mathematics and biology in high s...Tropics source of much of world's biodiversity
...ding partially answers a question that has puzzled biologists for more than 100 years: Why is there a greater diversity of life in the tropics - both in the oceans and on land - than at higher latitudes? "These species are spilling out of the tropics and increasing the diversity in temperate and arctic regions...Continued warming of the Arctic Ocean
...ude," according to Schauer. During the expedition, biologists discovered zooplankton species from the Norwegian Sea which were previously unrecorded from the northern latitudes that they had reached via the warm waters. For one month, scientists of the Alfred Wegener Institute, the University of Bremen and the...Hail to the hornworts: New plant family tree sheds light on evolution of life cycles
...ir time as sporophytes. Geneticists, developmental biologists and evolutionists have been wondering how the switch happened and have put forth two competing hypotheses." For each hypothesis, scientists have come up with an evolutionary scheme showing how different plant lineages should be related to explain th...