The Bronx Zoo says a 3.5-foot mangrove snake has gone missing from its exhibit for more than two days.

The zoo tells News 12 that the mildly venomous snake has been missing since Tuesday and is nowhere to be found.

Experts say mildly venomous means its venom is not life threatening to humans.

At the Bronx Zoo, the home of the mangrove snake is in "JungleWorld."

Mangrove snakes are slim black snakes with yellow bands native to Southeast Asia. Zoo officials say the snake is nocturnal, so there is no real danger during the daytime. They also have rear fangs and big eyes with long, narrow slits.

The zoo told News 12 in a statement, "Mangrove snakes, are shy, timid, secretive in nature and active at night. We have every reason to believe the snake is in JungleWorld."

The sign posted at the zoo warns visitors entering the exhibit to contact zoo officials immediately if they see the snake slithering around. The sign also informs visitors that there is little chance of coming in contact with the snake.