Many birds are remarkably clever. New findings help reveal how they can be so smart. In mammals, intelligence is seated in the neocortex, which has neurons arranged in layers and columns. Birds lack a neocortex and were thought to have a forebrain composed of simple clusters of neurons. Recent research indicates that a part of the bird forebrain, the dorsal ventricular ridge, has neurons layed out similarly to those in the mammalian neocortex. Learn more at BirdNote.org.