Mostrando entradas con la etiqueta Serpiente. Mostrar todas las entradas
Mostrando entradas con la etiqueta Serpiente. Mostrar todas las entradas

domingo, 2 de febrero de 2014

Scientists Solve the Mystery Behind Flying Snakes

Snakes might look scary, but researchers say most are harmless if left alone. (Photo : Omar Torres-Carvajal et al. CC-BY 3.0)

Scientists have recently discovered the mystery behind these gliding reptiles that carry the ability to fling themselves through the air--otherwise known as flying snakes.

According to study researchers, the serpents are able to drastically alter their body shape and generate energy that gives them the ability to stay aloft.
"The snake is definitely not an intuitive glider. When you look at it, you say: 'that thing should not be able to glide'. And in its normal body configuration that is probably true. "But when it enters the air, when it takes off and jumps and leaps from a branch, it massively transforms its body," said Professor Jake Socha, from Virginia Tech in the US, who carried out the study, according to BBC.

There are only five known species of flying snakes that belong to the genus Chrysopelea, according to background information from the study. Socha notes that as the snakes jump, their bodies flatten out and rotate in such a way that allows motion to increase through a unique cross-sectional shape.

Researchers found that the body of these creatures changed to one that was typically more squashed and concave at the bottom from the cross-section.

To get a better grasp on how their bodies change for this process, researchers also created a plastic copy of the snake's cross-section and placed it in a tank of flowing water to study it further.

"The water flowed over it and we measured the forces on the model and we also visualised the flow movement in the water using lasers and high-speed cameras," Socha added, via the news organization.

Along with future studies, researchers believe these findings could contribute to the future makings of robots that can crawl, climb and even glide.

What do you think?

More information regarding the study can be found via the Journal of Experimental Biology.

ORIGINAL: World Science Report

jueves, 7 de marzo de 2013

The Green Vine Snake

ORIGINAL: My Amazing Earth
by Amazing Earth on 
August 2, 2012


The green vine snake is diurnal and mildly venomous. The reptile normally feeds on frogs and lizards using its binocular vision to hunt. They are slow moving, relying on camouflaging as a vine in foliage.

The snake expands its body when disturbed to show a black and white scale marking. Also, they may open their mouth in threat display and point their head in the direction of the perceived threat.

There is a widespread myth in parts of southern India that the species uses its pointed head to blind its human victims.


martes, 26 de febrero de 2013

The Garter Snake Mating Ball

ORIGINAL: My Amazing Earth
September 21, 2012

Each year garter snakes gather in thousands for the winter at a few places in Manitoba , Canada . They are attending the natural phenomenon called The Mating Ball.

The above video is an up-close footage of red-sided garter snakes mating in Narcisse limestone cave in Manitoba , Canada.


viernes, 11 de enero de 2013

Una serpiente pitón viaja en el ala de un avión Qantas en Australia

ORIGINAL: Publimetro
11-01-2013
Una serpiente de pitón enganchada al ala de un avión de Qantas en Australia, en una imagen del 10 de enero de 2013. Foto: Robert Weber/afp.com
Una serpiente pitón de tres metros de largo viajó en el ala de un aparato de la compañía australiana Qantas para estupefacción de los pasajeros, quienes presenciaron la batalla del animal para no caer al vacío.

El reptil fue visto por los pasajeros instalados en la parte trasera del avión que realizaba el trajecto entre Cairns (noreste) y Port Moresby, la capital de Papúa Nueva Guinea, cuando alcanzó altitud de crucero.

El animal, probablemente una pitón ametista, la más grande de Australia, "seguía en el avión a su llegada a Port Moresby pero ya estaba muerta", dijo a AFP un portavoz de Qantas.

La serpiente logró refugiarse en un hueco de los 'flaps' del borde de arrastre, pero la cola, que sobresalía de su escondite, estaba al aire, condenando al animal de regiones tropicales a una muerte segura por hipotermia, según un testigo.

Qantas precisó que nunca había visto nada parecido.

domingo, 15 de julio de 2012

This is what snake venom does to blood

ORIGINAL: ScienceDump

Basically, a single drop of this venom (from a Russell's viper) is dripped onto a petri dish of blood, and in seconds the blood clots into a thick chunk of solid matter