They may, in that they prey on snakes as well as other reptiles, birds, small mammals, eggs, insects, etc. But they do not specifically prey on poisonous snakes. Typically people like it when they find out there is a king snake living near their house for this reason. They are also nice for rodent control.
There are a large variety of snakes often called black snakes, but may have very different life histories--from pine snakes to the venomous cottonmouth moccasin. However, this addresses a whole different topic.
black snake
The black snake that has a pattern on it is the ring snake.
The longest black snake in North America is named the black rat snake. The record size recorded of this black rat snake is eight feet in length. Which makes the black rat snake is the record longest.
That depends. The term black snake can apply to many different species of snake. The black rat snake, Pantherophis obsoletus, sometimes called the black snake, is indeed a rat snake.
No, the black rat snake is not poisonous.
a black viper snake lives the longest
No a black Mamba is not a mammal it is a reptile because it is a snake it is infact the fastest snake in the world.
Günther's Black Snake was created in 1842.
Black-striped Snake was created in 1854.
black mamba
A black snake is a form of firework which creates a snake=like formation of ash via an intumescent reaction.
The black-mamba (most aggressive and deadliest poisonous snake on Earth)