The bullfrog Named for its distinctive, loud call, the bullfrog is an aquatic frog belonging to the Ranidae family. The bullfrog is the largest North American frog, commonly weighing up to one pound and measuring more than 8 inches in length.
Bullfrogs are green or brown in color with a white or yellow belly and dark legs.
One of the most powerful features of this large frog is its legs. Commonly measuring 2 inches longer than its body, the bullfrog's powerful, muscular legs are often 10-12 inches long. It is these legs that keep the bullfrog mobile, allowing him to swim, run, walk, or jump. It is not uncommon for bullfrogs to leap 3-6 feet at a time when moving. This frog is known for its voracious appetite.