Home   —

Jameson’s Mamba Snake Facts & Information

Jameson’s mamba is also know as Dendroaspis jamesoni.

Jameson’s mamba is a long, slender snake with a tapering tail which makes up to 25% percent of its total length. They grow from 1.5-2.2 meters (or 4.9-7.2 feet). Their backs are a dull green, which pales to a lighter green, yellow, or even cream belly. Like every other mamba, Jameson’s mamba, when threatened, can flatten its neck, much like a cobra.


Jameson’s mamba is mostly found in Central and West Africa, but it can be found in some areas of East Africa. This snake lives in rainforests, woodland, forest-savannah, and deforested areas at elevations up to 2,200 meters (7,200 feet)! It is arboreal (lives in trees), more so than all the other mambas. He is very adaptable, and is often found in parks, buildings, and farmland.

Don’t worry though! Jasmeson’s Mambas are aggressive, and would rather flee than fight. It will usually flatten its neck and try to scare you and get away. But, if you corner one, be careful. Their long length gives them a large striking range, and nobody wants to get bitten.

Diet and predators

Jameson’s mamba will chase its prey, and once it catches it, it will strike repeatedly until the prey is dead, and then consume it. It’s prey of choice is usually birds (since, y’know, they live in trees), but they will eat other animals such as mice, lizards, and bats. Smaller individuals have been recorded feeding on lizards and toads. There is no evidence they have adapted to hunting terrestrial rodents such as rats, though they have been recorded eating rodents in Kenya, and have accepted them in captivity.

The mamba’s major predators are birds of prey such as the Congo serpent eagle (pictured). Other predators are the honey badger, other snakes, and the mongoose.

The main predators of Jameson’s Mamba are birds of prey, including the martial eagle, bateleur, and the Congo serpent eagle. Other predators may include the honey badger, other snakes, and some species of mongoose.

Jameson's Mamba Venom

The venom of Jameson’s mamba is highly neurotoxic, the main neurotoxins being dendrotoxins, but also contains cardiotoxins, hemotoxins, and myotoxins. Symptoms of envenomation include pain and swelling of the bite site, respiratory paralysis, drowsiness, restlessness, sudden loss of consciousness, vertigo, limb paralysis, ataxia(sudden loss of control of body movement), shock, hypotension, nausea, vomiting, epistaxis(bleeding from the nose), and a plethora of other things you really don’t want to have.

After being bitten, death can occur 30 and 120 minutes, but may take up to six hours or more, for untreated bites. The mortality rate for untreated bites is unknown, but is said to be very high.

Jameson’s mamba has short fangs at the the front of the skull, and requires the snake to hold down for a short period of time, though this mamba strike repeatedly to get the same effect.

Share Post:


Related Topics

Inline Feedbacks
View all comments