The African forest elephant ("Loxodonta cyclotis") is an elephant which lives in the forests of the Congo Basin. It is often considered a separate species from the African bush elephant ("Loxodonta africana"); a 2010 study said that the two elephants were two different species. However, since the two groups can interbreed successfully, they may only be separate subspecies of "Loxodonta africana". Pygmy elephants of the Congo Basin are sometimes said to be a different species ("Loxodonta pumilio"). They are probably forest elephants whose small size is adapted to the rainforest conditions.