Tag: "stinging" at biology news

Chemical exchanges show wasps are bad losers

...s displayed by the wasps included chasing, biting, stinging and full-on fighting. The video and chemical analysis showed that a volatile chemical, which is a type of spiroacetal, was released by the wasps when losing a particularly aggressive fight. Dr Hardy said: "Our research suggests that wasps which hav...

Nanosecond-scale release of stinging jellyfish nematocysts

...hers have characterized the explosive discharge of stinging jellyfish nematocytes and show that this event rep... cnidarians are giant exocytotic organelles of the stinging cells used for prey capture and defense. These miniature cellular weapons contain a cocktail of hemo...

Trained wasps may be used to detect bombs, bugs, bodies and more

...s with a food reward. The wasps are not capable of stinging humans, the scientists say. Training a single wasp to detect a target odor can take as little as five minutes and the insects can be easily bred by the thousands, they say. The research team developed a special ventilated device, composed of PVC pipe...

Study shows humans have ability to track odors, much like bloodhounds

...ulate both, and some, like onions and ammonia, are stinging enough to bring tears to the eyes. Perhaps, some suggested, von Bksy's subjects were localizing odors based on trigeminal nerve stimulation, not olfactory nerve stimulation. To eliminate this confusion, Porter and Sobel used two odors with minimal tr...

Anemone armies battle to a standoff

...other with special tentacles that leave patches of stinging cells stuck to their opponent. David J. Ayre from ...ccupy. Larger, well-armed "warriors" inflate their stinging arms and swing them around. Towards the center of the colony, poorly armed "reproductive" anemones s...

Boosting vitamin C in plants can help reduce smog damage

...harmful effects of smog on people and animals the stinging eyes and decreased lung capacity are the stuff of well-researched fact. Now, the body of knowledge about air pollution's effects on plants has grown with University of California, Riverside Biochemistry Professor Daniel Gallie's discovery of the imp...

Deep-sea jelly uses glowing red lures to catch fish

...ght train. Others specialize in feeding, and sport stinging tentacles. Almost all siphonophores are biolumin...scope, he discovered that interspersed among their stinging tentacles were thin rod-like structures. These "tentilla" were tipped with red, glowing blobs. Sever...

Amino acids in nectar enhance butterfly fecundity: A long awaited link

...terpillars on both nitrogen poor and nitrogen rich stinging nettle. After the butterflies emerged, they were fed nectar with or without amino acids. Butterflies raised under natural, nitrogen poor larval food conditions laid more eggs when fed nectar containing amino acids. These results provide the long mis...

When cobras spit, there's not a dry eye in the house

...it an eye, the sensitive cornea reacts with severe stinging pain. In the worst case these burns can ultimately lead to blindness. As guinea pigs Katja Tzschtzsch used four Mozambique and six black-necked spitting cobras from the animal house in Schloss Poppelsdorf. In her experiments she either stood face to ...

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(Date:10/15/2014)... As our ability to assess the pandemic risk from ... developments, we must not allow ourselves to become complacent ... an international consortium of scientists. , Influenza pandemics arise ... have yet to develop widespread immunity – spreads in ... in the past 100 years, the worst of which ...
(Date:10/15/2014)... increased resistance to bacterial pneumonia in female mice to ... , Females are naturally more resistant to respiratory infections ... shown that increased resistance to bacterial pneumonia in female ... 3 (NOS3). They also show that this enzyme is ... hormone estrogen. , The team, lead by Professor Lester ...
(Date:10/14/2014)... thieves, prostate cancer tumors scavenge and hoard copper that ... avarice may be a fatal weakness. , Researchers ... prostate cancer cells by delivering a trove of copper ... cells brimming with the mineral, leaving non-cancer cells healthy. ... commercially available for other uses, could soon be tested ...
Breaking Biology News(10 mins):Scientists 'must not become complacent' when assessing pandemic threat from flu viruses 2Prostate cancer's penchant for copper may be a fatal flaw 2
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