Their call is short, consisting of two short clicks. They are terrestrial frogs, meaning they live on the ground rather than in trees. They lay eggs in damp hollows near water. They have a complicated mating ritual. They enjoy immersing themselves in water.
Males can be aggressive with other males on what they view of their territory.
Males of the species outnumber females by a two to one ratio. Green Mantellas are quite small, reaching only 28 to 35 mm in length, although they are the largest of the Mantellas. They appear in two color varieties. The most common is gray-green with stippled back legs and dark flanks. The other is a little bit smaller and a beautiful, vibrant lime green color with black flanks.