The drill is a close relative of the mandrill. It searches for food on the forest floor and can also climb trees to feed or sleep.
It has olive-grey fur with a white beard and white fur around the cheeks. Males are much larger than females and have more developed fangs.
It is active during the day and searches for food on the forest floor. Plants make up most of its diet, but it also eats insects and small vertebrates. It can climb trees to feed or sleep.
An extinction-risk assessment has not been added yet.