Take a rare glimpse into the breeding behavior of the great plains toad (Anaxyrus cognatus), a Wyoming species of greatest conservation need. These toads are more often heard and not seen, due to their incredibly loud calls for such a small animal! This video shows how male toads produce their calls—by inflating a sac on their throat (called the vocal pouch) with air. Each summer, just after sunset, males congregate in temporary ponds on the high prairie and begin their impressive chorus. Wildli