Difference between poisonous and nonpoisonous snakes zoology notes in hindi
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Main Differences Between Poisonous and Non Poisonous Snakes
All poisonous snakes have an angular, wedge-shaped head, except for the red, black and yellow-banded coral snake that populates the Carolinas, Florida, Georgia, Alabama, Louisiana and Mississippi. Non poisonous snakes typically have long, slender bodies and vertical heads, though some non poisonous king and garden snakes can grow quite thick. Poisonous snake eyes have vertical, cat-eye slits for pupils instead of the round ones found on non venomous snakes. Of the poisonous snakes, the coral snake is the only round-pupil snake.
Vipers tend to have a smooth cap on their head between their eyes to their nose. Non poisonous snakes have longer, vertical heads and a smooth cap that extends far beyond the round-pupil eyes to their nose. The coral snake, again, is an exception and has that larger cap. On the underside of viper tails, you'll find undivided scales compared with non venomous snakes.