An indri indri sits in a tree in Andasibe-Mantadia National Park in Madagascar

The indri is the largest remaining lemur in existence, standing just shy of four feet tall. It is famous for its very loud and distinctive song which can usually be heard early in the morning throughout its range in northeastern Madagascar.

Click to hear what it sounds like:

indri.mp3

(sound file © 2000 David Parks and Larry Barnes http://www.mobot.org/mobot/madagascar/)