Caribbean frogs started with a single, ancient voyage on a raft from South America
... successful dispersals happened after the asteroid collision rather than earlier. "The asteroid impact generated giant waves that devastated the islands, probably eliminating any existing fauna at that time," Hedges said. The original frogs that successfully colonized the Caribbean islands likely hitched a ...Dinosaur hearing, listening to muscle noise, quieter cubicles
...e in terms of repetitive motion (voice on/off) and collision (vibration) of tissue, as well as how the voice can recover from physical stress (5aSC12). DETECTING BREAST LESIONS WITH VIBRO-ACOUSTOGRAPHY Vibro-acoustography (VA) is a non-invasive imaging technique using ultrasound to search for lesions in b...High-tech equipment may help reduce wildlife-vehicle collisions
...rage total costs associated with an animal-vehicle collision for three species: $7,890 for deer, $17,100 for elk, and $28,100 for moose. Further calculations showed that animal detection systems could be cost effective; they may pay for themselves at locations that have at least five deer, three elk or two moo...Tiny airborne particles are a major cause of climate change
...ets. The formation of larger water droplets by the collision process is less efficient and, therefore, rainfall is suppressed. The smaller droplets are lifted higher up into the atmosphere, creating larger and taller clouds that will persist longer. Not only does this alter the whole water cycle, but the incre...Whiplash injuries -- are they caused by startle reflexes?
...ficant component of the muscle reaction in a first collision like the unexpected one on the roads arises through being startled by the abrupt motion and loud sound of the impact. This new finding promises a new understanding of the causes of this common injury, leading to new ways of prevention and managemen...Science offers 'state of the planet 2006-2007' to explore global challenges
... 38 years?" Kennedy asks. "The population/resource collision has only grown more important since Hardin's Science essay. Earth's population then was about 3.5 billion; it has since grown by a factor of nearly two, to 6.3 billion. That growth, amplified by global increases in affluence and the power of techno...Interdisciplinary team develops guidelines for treating severely injured patients
If someone is injured in an automobile collision or is severely burned, emergency room physicians across the country would probably take similar steps to stabilize each condition. But subsequent treatment in the intensive care unit or operating room is less well established and may vary significant...How the octopus forms an elbow
...her, setting the second, or medial, joint at their collision point. This is a remarkably simple mechanism for adjusting the length of the arm segments according to where the object is grasped along the arm. The arm also forms a proximal joint near where the arm meets the body, and a distal joint near the sucke...Earth from Space: Iceberg knocks the block off Drygalski Ice Tongue
... tongue but had started migrating by 27 March. The collision on 30 March shows the ice tongue breaking off, and the final image on 1 April captures C-16 and the new iceberg swinging to the other side of the ice tongue. Mark Drinkwater of ESA's Ocean and Ice Unit said: "During its passage to the coastal foot o...Experts: Expanding biotechnology research in developing countries key to countering bioterrorism
... efforts to combat bioterrorism are on a potential collision course with legitimate biotechnology pursuits that hold the promise of improving life for millions of the world's poorest people. In a report released Feb. 27, DNA for Peace: Reconciling Biodevelopment and Biosecurity,* the CPGGH, part of the Univer...Story tips from the Department of Energy's Oak Ridge National Laboratory
...hese studies are being performed to explore atomic collision phenomena in a wide variety of plasma environments, ranging from plasma fusion reactors -- including experiments for the ITER project -- to interstellar space. Agencies that support MIRF research include DOE's Basic Energy Sciences and Office of Fusi...Scientists and artists to search for common ground
...ng meaning or trying to change the world? In this collision of politics, ethics and imagination spanning ecology, bioscience and deep space what are the Rules of Engagement? Head of CNAP, Professor Dianna Bowles said: "We are very pleased to be in partnership with the Arts Council England, Yorkshire and to ...Ecology must be part of research on renewable energy
...ater noise, emission of electromagnetic fields and collision or avoidance with the energy structures represent further potential impacts on coastal species, particularly large predators." Any such environmental effects need to be considered in addition to the existing pressure exerted on our coasts. In the abs......s dropping black discs from different angles, on a collision course with the flies. Capturing the responses on video, she showed that flies escaped by means of jumping in a forward fashion and directly away from the object, in addition to using their wings. Her results suggest that signals in the brain transfe...Study in Royal Society journal on heritability of female orgasm
... University, KEELE, ST5 5BG, United Kingdom Avian collision risk at an offshore wind farm by Mark Desholm and Johnny Kahlert The fast development of wind power production into marine areas has caused great public concerns for the possible lethal effects on waterbirds. The present radar study documents a su...New collision looks imminent for B-15A iceberg
...owly past the Drygalski ice tongue. A full-fledged collision failed to take place, but a glancing blow broke the end off Drygalski in mid-April. The stretch of Victoria Land coast parallel to B-15A's current position is unusually rich in wildlife, noted for colonies of Adelie penguins as well as Weddell seals...21-22 April AAAS forum to discuss Pentagon R&D spending, other policy issues
...byl nuclear accident; and a closing plenary on the collision between science and society over such issues as evolution and stem cells. Speakers at the closing plenary will include Eugenie Scott of the National Center for Science Education, on the evolution battle, and physicist Lawrence M. Krauss of Case Weste...USGS featured at AAAS - Nation's largest science meeting
...at the mouth of Chesapeake Bay. The force of this collision was so great that it vaporized hundreds of feet of seawater and blasted sediments forming a 53-mile-diameter crater. Glass particles called "tektites" scattered across North America. Tsunamis triggered by the impact may have topped the Blue Ridge Mo...B-15A iceberg's close encounter monitored by Envisat
A collision was predicted to have already occurred by now by s...y rule out its potential catastrophic removal from collision with a large drifting berg in the short term. That leaves the elements of temperature variations, wa......iter early this morning and is now on a controlled collision course toward Saturn's largest and most mysterious...rbiter performed a manoeuvre to enter a controlled collision trajectory towards Titan. As planned, a fine tuning of the trajectory took place on 22 December to p...