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„Venomous snake“

from the gallery of Meeli Sonn

The head of a venomous snake is usually triangular or shaped like an arrow. Exceptions are the non-venomous Eastern hognose snake —which may flatten its head when threatened — and the coral snake. Its eyes. Venomous snakes usually have a vertical, elliptical (cat-like) pupil, whereas the pupil of a non-venomous snake will be round and located in the center of its eyes. But there are some exceptions to this general rule, said Ross Baker, owner and founder of Oxbow Reptile in Duvall, Wash. Among those exceptions are the night snakes (Hypsiglena). Also look to see if there is a pit, or hole, between the snake’s eyes and nostrils or to the sides of the eyes. A venomous snake has a heat-sensitive pit or pits that enable it to locate warm-blooded prey, even in the dark. Non-venomous snakes lack these specialized sensory pits.
Its tail. Most venomous snakes have a single row of scales on the underside of the tail. The venomous coral snake is an exception because it has a double row. A double row is common in most non-venomous snakes.

Picture ID: 0220f03
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Frank Siegling liked this artwork 2014-09-20 15:08:03 UTC
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