Green Mamba (IMAGE) GigaScience Caption Mambas are highly venomous members of the Dendroaspis genus. There are four extant species, all of which were included in this study. They are native to different regions in sub-Saharan Africa. Three of these species are green and live primarily in trees. The fourth, the black mamba, is one of the largest and most venomous snakes in Africa. Credit H. Krisp Wikimedia Commons Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.