Western Green Mamba, Dendroapis viridis, is a highly venomous arboreal snake native to West Africa. It has a long slender body, mainly dark and light green becoming more yellow towards the tail. Scales are black in the edges. It is the largest of the arboreal mambas. The average length of an adult snake of this species is between 5.9 – 7.2 feet. This species occurs in Nigeria in the southwest region. The western green mamba is mostly diurnal, but can also be seen hunting at night from time to time. Its jaw and its elastic skin, which allows for dislocation makes it able to swallow prey up to four times the size of its head.