Saturday, November 30, 2013

secret of Box Jellyfish (Chironex Fleckeri)



Common names:
(class Cubozoa) are cnidarian invertebrates distinguished by their cube-shaped medusae. Box jellyfish are known for the extremely potent venom produced by some species. Chironex fleckeriCarukia barnesi and Malo kingi are among the most venomous creatures in the world. Stings from these and a few other species in the class are extremely painful and sometimes fatal to humans.

box jellyfish description:
Box Jellyfish are pale blue and transparent and bell or cubed shaped with four distinct sides, hence box jellyfish.
Measuring up to 20 cm along each side of the cube or bell, the Box Jellyfish  has up to as many as 15 tentacles on each corner which can be 3 metres in length with up to 5,000 nematocysts (stinging cells).
The Box Jellyfish shoots itself along up to speeds of 4 knots in a  jet-like motion.

Killing technique:
The Box Jellyfish's Lethal Venom
     The sting of a box jellyfish causes excruciating pain and skin damage and can leave permanent scars. In severe cases, death may occur from heart failure or drowning following loss of consciousness. A box jellyfish antivenin is available in Australia. In northern parts of the country, some beaches are closed to the public for periods between November and April when the jellyfish are most abundant.

best attack of anaconda (Eunectes)




Common names:
is a genus of boas found in tropical South America. They are an aquatic group of snakes and include one of the largest snakes in the world, E. murinus, the green anaconda. The name Eunectes is derived from the Greek word Eυνήκτης, which means "good swimmer". Four species are currently recognized.

anaconda description:
Anacondas are large boas of the genus Eunectes. The most familiar species is the green anaconda, "Eunectes murinus", notable for being one of the world's largest snakes. Green anacondas can grow to be 17 feet in length and weighing 215 lb. They are found east of the Andes in Colombia, Venezuela, the Guianas, Ecuador, Peru, Bolivia, Brazil, and on the island of Trinidad. Other anacondas are the yellow anaconda, Eunectes notaeus, a smaller species found in eastern Bolivia, southern Brazil, Paraguay and northeastern Argentina; and the dark-spotted anaconda, "Eunectes deschauenseei", a rare species found in northeastern Brazil, coastal French Guiana and Guyana. All three species are aquatic snakes that prey on other aquatic animals, including fish, river fowl, caiman, and capybaras. Accounts exist of anacondas preying on domestic animals such as goats and ponies that venture too close to the water.

Killing technique:
Crushes prey by constriction around it.

anaconda