Bull Frog

Bull Frogs are large frogs, with a call that gives them their name.  

Their backs and upper sides are olive green in color.  Females are bigger than males.

Their eardrums (tympani) are easy to see.  They are the circular marks behind the eyes.  On a female, the eardrums are about the same size as the eye, while on a male the tympani are bigger.

Their bellies are lighter in color with yellow spots.

Their upper lip is olive green while their lower lip is often lighter.

Bull Frogs can grow up to a pound or more, and are hunted for their back legs.  They are most often a source of food in the southern United States.