Tag: "snakes" at biology news
Protein Glitch May Be Early Problem In Inherited Alzheimer's
...esenilin gene. Presenilin is a long protein that snakes
in and out of the membranes of nerve cells. It is found in an altered form in nearly 60 percent of all "early onset" familial Alzheimer's disease (FAD) cases, cases where symptoms first appear in patients in their late 20s to the their late 50s. ...
UF Researchers: Development Promotes Disease Among Gopher Tortoises
...ows provide homes for about 60 vertebrates -- from snakes
to birds -- and more than 300 invertebrates, including spiders, crickets and beetles. "Tortoises can act to spread seeds of plants and also to aerate the soil via their digging action," Brown said. Researchers discovered the disease i...
Salve From Serpents? UD Studies May Explain Why Viper-Venom Protein Stops Tumor Spread In Mice
...w.udel.edu/PR/NewsReleases/Viper/viper.html Viper snakes
can kill, but a protein in their venom prevents the spread oftumors in laboratory mice, and a molecular 'portrait' now under development mayexplain why, according to a University of Delaware scientist profiled in the newissue of Cardiology Today , m...
Biochemists Gain Crystal-Clear Insight into 'Ancient' Enzyme
...ut these data suggest that the end of the pre-tRNA snakes
throughthat cleft, with the protein directly contacting the pre-tRNA. This is reallya very different mechanism for what these proteins do," said Fierke. The Duke researchers performed chemical experiments that confirmed thiscontact, producing altere...
A Real Smart Asp: Snakes Show Surprising Ability To Learn
...tist at theUniversity of Rochester, has found that snakes
have a muchgreater capacity for learning than earl...is research also indicates that, like humans, many snakes
relyon sight to get around, and that older and younger snakes
differin how they gather and decipher ...
Controlling Problem Snakes: Saipan Benefits From USGS Research
...r of habitats in Guam andJapan, respectively. "The snakes
pose serious threats to humans and thebiological d...s in an attempt to document whether a populationof snakes
has been established on the island, which has no native snakes
of itsown. This trapping effort reli...
'Cousin' Of Snake Venom Toxin Found In Mice
...s them to contract.Most who are killed by venomous snakes
die of respiratory failure because thealpha-neurotoxins shut down the diaphragm muscles, causing suffocation. While searching for genes that regulate brain development, Heintz andpostdoctoral associate Julie Miwa found lynx1. The investigators decid...
Biologists work to preserve rainforests endangered plants
...w agoutisand lots of birds, but they have venomous snakes
and other critters. I wish Ihad taken a bigger flashlight," she joked. Luckily, the snakes
stayed out of the researchers' way, and they were able tofinish their field work on time despite hea...
Gobbling food helps threadsnakes avoid danger; in a snake-eat-ant world, it's survival of the fastest
AMHERST, Mass. - Although large snakes
often fascinate people with their ability to swall...f the journal Nature. "Typically when we think of snakes
feeding, we think of pythons and boas eating large animals," said Kley. The snakes
are able to do th...
Cross-dressing in the snake world
may seduce unsuspecting males in order to sap thei...he behaviour. The team observed red-sided garter snakes
(Thamnophis sirtalis parietalis) in Manitoba, Canada, which had recently emerged from hibernation. T...
New fossil snake with legs, reported in Science
...tal role in a scenario that places the ancestor of snakes
in the sea. In support of Pachyrhachis ' position...r analysis also indicates, however, that these two snakes
were not primitive ancestors, but advanced snakes
similar to modern boas and pythons. The new anatom...
Venomous dinosaurs really existed
.... It resembles the venom-delivering front teeth of snakes
in the cobra family and poisonous lizards such as the Gila monster and the Mexican beaded lizard, Aranda-Manteca told a meeting of the Society of Vertebrate Paleontology in Mexico City last month. Other palaeontologists are intrigued, but cautiou...
Passport, please: A global strategy to curb invasive species
... only issue. More than one million nocturnal brown snakes
now inhabit even the smallest spaces on Guam. They cause black-outs by crawling on power lines, hunt in family chicken coops and slide into homes through bathroom vents. Guam may sound extreme, but many examples rival the plague-like status of the ...
Study of poisonous snakes boosts old Batesian principle of mimicry
...eves experiments he and others conducted with fake snakes
strongly show the Englishman was right. Their r... the striking similarity between deadly U.S. coral snakes
and scarlet king snakes. Both species bear bright red, yellow and black bands, but the chief visual ...
Leading snake expert dies at 38
...was one of the world's leading experts on venomous snakes
and his commitment and zeal for his work never wav...this project. For over ten years, he was studying snakes
in the family Elapidae which includes highly venomous species such as cobras, coral snakes, taipans,...
Cognitive testing reduces risks of procedure for brain arteriovenous malformations
... more like a wrestling match among a hundred small snakes
than part of the circulatory system. Many patients don't know they have one. Some have crippling headaches. For the more unfortunate, the AVM ruptures, causing brain damage or death. Now, a team of Johns Hopkins specialists has developed a relat...
Does a vegan diet have a moral basis?
...s document the losses of rabbits, mice, pheasants, snakes
and other field animals in planting and harvesting crops. Said one researcher: "Because most of these animals have been seen as expendable, or not seen at all, few scientific studies have been done measuring agriculture's effects on their populations...
Ambushing prey may make snakes vulnerable
...s thatpart of the answer for threatened Australian snakes
is that they ambushtheir prey instead of hunting a...his work may helpconservationists identify at-risk snakes
before it's too late. Currently, "declines may be difficult to assess until they haveprogressed to t...
Australian frog is first to make its own chemical weapons
...tes known to obtain alkaloids from the diet. While snakes
and other vertebrates can make their own venom or poison, these materials are made of toxic proteins or other chemicals, not alkaloids, Daly said. One class of alkaloids is found only in Australian frogs of the genus, Pseudophryne. Dalys group isol...
Greatest threat to Asia's wildlife is hunting, scientists say
... million kilograms (more than 2 million pounds) of snakes
are imported to Shanghai, China, each year serving as a luxury food item for that city's burgeoning middle class. The international trade in birds is astonishing in its scale, with over 350,000 sold in a Jakarta, Indonesia market annually, and 276 s...