Tag: "spider" at biology news

Chickadee, nutchatch presence in conifers increases tree growth, says CU-Boulder study

...ain study area, identifying more than 300 separate spider and insect species collectively known as arthropods. The trees used in the study were set up to exclude birds, ants, or both, since ants also can have significant impacts on other arthropods, he said. "The study indicates that pine canopies are v...

UCR biologists unravel the genetic secrets of black widow spider silk

...y proteins in the dragline silk of the black widow spider an advance that may lead to a variety of new mate...ders dragline silk is a standout compared to other spider silks because of its superior strength and extensibility, a combination which enables black widow dr...

Fibers are center stage at international conference

...n the gamut from fibers mimicking lotus leaves and spider silk to green friendly composites and biomedical textiles. Conference organizer Mike Ellison, a professor of materials science and engineering at Clemson University, says the meeting is designed to share scientific knowledge pertaining to fibers, f...

Fascinating spider silk

... Stronger than steel and more elastic than rubber: spider silk is unsurpassed in its expandability, resistan... spinning process. Fundamentally, the spinning of spider silk represents a phase change from a solution into a solid thread; but the exact details of this pr...

A rarity among arachnids, whip spiders have a sociable family life

...an their own. Rayor suspects that benefits of whip spider social behavior include enhanced safety from predators. Although there are few reports of other creatures eating them, a mother nearby may offer young amblypygids some protection. When Rayor disturbed D. diadema youngsters, they gathered closer to ...

Spiders: Chastity belts stop cuckoos in the nest

...(vol. 18, pages 174-181, 2007). When a male wasp spider discovers a potential partner, he attracts her by ...ing competitors from having intercourse: the dwarf spider produces a viscous secretion in its genital which it spurts after the sperm. This mucus plug blocks ...

McGovern Institute Scolnick Prize awarded to David Julius

...tissue, as well as noxious chemical agents such as spider toxins and mustard oils, Dr. Julius has established these channels as polymodal receptors that allow us to detect, through pain, the presence of inflammation or injury as well as extremes of temperature. His work has had a great impact not only in b...

New study may show how to forestall a fatal, virus-caused immune-system meltdown

...s senior authors. Cell signaling networks are like spider webspulling on one strand causes all the strands to move, and the Ingenuity system helped us see and comprehend connections we would have missed otherwise. Connecting those strands is critical to diagnosing and restoring balance to an immune system...

'Biomimetic Technologies' project will create first soft-bodied robots

... that for the first time combined the toughness of spider silk with the intricate structure of silica. Kaplan notes that there has been tremendous progress in the development and use of soft materials in devices ranging from keyboards to toys. "However, it is very hard to make soft devices that move aroun...

MIT: Nanocomposities yield strong, stretchy fibers

...long been an elusive engineering goal. Inspired by spider silk, a naturally occurring strong and stretchy su...et behind the combined strength and flexibility of spider silk lies in the arrangement of the nano-crystalline reinforcement of the silk while it is being pro...

Ground spider diversity studied in research project

...arning a master's degree, has been studying ground spider diversity, distribution and abundance in the 515-a...ving spiders." For people who think the only good spider is a dead spider, Henderson has this to say: A diverse spider population signifies a healthy habitat...

Tarantula venom and chili peppers target same pain sensor

...uce pain. The researchers examined venoms from 22 spider and scorpion species whose bites are known to caus...se pain. They also showed that venom from a second spider activated TRPV1, but they did not pinpoint which peptides were responsible. The fact that a second ...

MIT engineers probe spiders' polymer art

...as identified two key physical processes that lend spider silk its unrivaled strength and durability, bringi...eality the long-sought goal of spinning artificial spider silk. Manufactured spider silk could be used for artificial tendons and ligaments, sutures, parachu...

ACS News Service Weekly PressPac -- Oct. 4, 2006

...ent victims with bleeding wounds? Is a wrapping of spider silk the key to preventing the body from rejecting implants? A review of research on spider silk concludes that scientists have largely overlooked such possible medical applications of this ex...

Clemson researchers develop nanotechnology

CLEMSON -- Picture a spider web coated with sugar. But instead of luring in unsuspecting creatures, this spider web pulls in deadly anthrax spores, rendering them harmless. Clemson University chemist Ya-Ping Sun...

Tarantulas produce silk from their feet

...or change in our evolutionary hypothesis regarding spider silk," Summers said. "It could mean that silk prod...aws. However, the scientists noticed that when the spider started to slip down the surface, it produced silk from all four pairs of legs, allowing it to adher...

Velvet worm brains reveal secret sisterhood with spiders

...elt from their organization that these looked like spider brains, that they had more in common with spider brains than with other arthropod brains." Strausfeld, a UA Regents' Professor of neurobiology and...

How parachute spiders invade new territory

...lled Humphrey's model it made assumptions that the spider silk was rigid and straight and the spiders were j...how it can become highly contorted, preventing the spider from controlling the distance it travels and propelling it over potentially epic distances. Dr And...

Liquid Jungle Lab environs -- home to five new species

...(Foxita cambrai) and a never-before described male spider (Amphidraus sp. nov), collected and characterized by entomologists at the University of Panama. Bahia Honda forms part of the buffer zone of Panama's newly established Coiba National Park and UNESCO World Heritage site. This hefty volume will be es...

Nature meets technology at Georgia Tech's conference on bio-inspired design

... findings on materials inspired by the strength of spider silk, the elasticity of cartilage, the arrangement of butterfly scales, the dry adhesion of gecko hairs for locomotion, fish teeth and the patterns and processes of diatom silica shells. Other researchers will present research on the propulsive syste...

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