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The outcome of all snakebites depends on a multitude of factors: the type of snake, the size, physical condition, and temperature of the snake, the age and physical condition of the person, the area and tissue bitten (e.g., foot, torso, vein or muscle), the amount of venom injected, the time it takes for the person to find treatment, and ...
Vipera berus - Venom delivery apparatus. Snake venom is a highly toxic saliva [1] containing zootoxins that facilitates in the immobilization and digestion of prey. This also provides defense against threats. Snake venom is usually injected by unique fangs during a bite, though some species are also able to spit venom. [2]
The dorsum is a uniform grey or dark brown to black colour. [4] The belly is a uniform white, or pale yellow in colour, with a series of dark blotches. In specimens with a lighter belly colouration, the belly colouration may also include two or three scale rows on the flanks. [5] The snout is prominent and subcuneiform.
A Nerodia fasciata attempting to prey on a parvalbumin-coated lure.Parvalbumin is involved in prey signaling. [5] An unusual reddish specimen of banded water snake. The banded water snake or southern water snake (Nerodia fasciata) is a species of mostly aquatic, nonvenomous, colubrid snakes most commonly found in the Midwest, Southeastern United States.
Other important factors for risk assessment include the likelihood that a snake will bite, the quantity of venom delivered with the bite, the efficiency of the delivery mechanism, and the location of a bite on the body of the victim. Snake venom may have both neurotoxic and hemotoxic properties. There are about 600 venomous snake species in the ...
The snake's body, appearing roughly perpendicular to its direction, may bewilder the observer, since preconception may lead one to associate snake movement with a head that leads and a body that follows. It appears the sidewinder is going sideways - but precisely where the snake is going, where it wants to go, the head gives clear indication.
Naja annulata (formerly Boulengerina annulata), commonly known as the banded water cobra or the ringed water cobra, is a species of water cobra native to western and central Africa. The species is one of the two species of water cobra in the world, the other one being the Congo water cobra ( Naja christyi ).
Related titles should be described in Water snake, while unrelated titles should be moved to Water snake (disambiguation). The term " water snakes " is sometimes used as a descriptive term for any snakes that spend a significant time in or near aquatic environments , especially freshwater habitats , such as any species belonging to the family ...