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Tag: "snake" at biology news

Students invent protective pouch to enhance cell therapy

...d and inserted with catheters that a physician can snake into the abdomen through the femoral vein in the leg. Using real-time imaging technology, an interventional radiologist can view and guide the minimally invasive procedure as it takes place. First, the doctor would insert the stainless steel outer st...

Scientists use nanoparticle to discover disease-causing proteins

A complex molecule and snake venom may provide researchers with a more reliable method of diagnosing human diseases and developing new drugs. Purdue University researchers bound a complex nanomolecule, called a dendrimer, with a glowing identification tag that was delivered to ...

Nonvenomous Asian snakes 'borrow' defensive poison from toxic toads

... what happens in the relationship between an Asian snake and a species of toad, according to a team of rese...ademy of Sciences. Hutchinson studied the Asian snake Rhabdophis tigrinus and its relationship to a species of toxic toad it eats. In the PNAS paper, she ...

Snakes' virtual glasses, leopard spots and all-optical transistors

...etwork of neurons in the snakes' brains –a kind of snake brain firmware - that provides image enhancement as though the snakes were wearing virtual corrective lenses. Because snakes' brains are small, the physicists kept their model of an image enhancing network simple. They discovered that even a crude ne...

Seeing the serpent

...t to avoid a dangerous predator -- the snake. "A snake is the only predator you really need to see close ...ing on a book about primate origins, including her snake hypothesis. ...

Stanford snake venom study shows that certain cells may eliminate poison

...produced by a veritable witches' brew of toxins in snake venom. It's long been thought that the body's ow...alian mast cells had been shown to respond to many snake venoms by secreting some potent biologically active mediators, they hypothesized that mast cells mig...

Taipan venom no snake oil

...the mulga, the rough-scaled snake, Stephens banded snake and the tiger snake. "Only the mulga did not have...n unique mechanism of killing." Dr St Pierre said snake venom was a huge untapped source of potential drug therapies. His study is the most detailed ever c...

A whole lot of shaking goin' on triggers early hatching in red-eyed tree frogs

...inguish vibrational differences, hatching early to snake attacks but not to rain At the edge of Ocelot Pon...y a bright green parrot snake. In a twinkling, the snake tears a few eggs from the clutch. With that bite, the embryos start to wiggle frantically. As the s...

Scientists discover global pattern of big fish diversity in open oceans

...e replacing big tuna and billfish with things like snake mackerel and pelagic stingrays. This is a fundamental change in the world's oceans." To understand what creates these patterns of diversity, the scientists collaborated with oceanographers to examine different open ocean "habitat" features. Sea surf...

Researchers reveal secrets of flying snakes

...cing adjustments while walking on a beam, a flying snake might continuously make adjustments to maintain co...ed a few aerodynamic features of the paradise tree snake -- one of five snake species that are purported to "fly." He videotaped and photographed various sna...

Venom doc tracks down snake bioweapons

... of one of nature's most sophisticated bioweapons: snake venom. His results are reported in the March issue...e saliva protein repertoire. To date, 24 different snake venom toxins have been characterized by scientists, but the evolutionary history ?or tissue origin ?...

At the molecular level, the predator is the prey

... forced several evolutionary changes in the garter snake Thamnophis sirtalis or, more specifically, in the snake nerve cell protein that endures the toxin's attacks. Embedded in the surface of garter snake nerve ...

Python a 'hearty' eater

..., and, according to the authors, this cold-blooded snake may provide insights into how remodeling of the heart occurs in adapting to prolonged exercise and in response to some diseases. The python does not eat frequently; it's more of a binge eater. James Hicks at the University of California, Irvine, tog...

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