Frog of the Week

American Bullfrog (Lithobates catesbeianus)

Common Name: American Bullfrog
Scientific Name: Lithobates / Rana catesbeianus
Family: Ranidae
Location: Canada, Mexico, and the United States of America
US State Location: Alaska, Alabama, Arkansas, Arizona, California, Colorado, Connecticut, District of Columbia, Delaware, Florida, Georgia, Hawaii, Iowa, Idaho, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, Montana, North Carolina, Nebraska, New Hampshire, New Jersey, New Mexico, Nevada, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Vermont, Washington, Wisconsin, West Virginia, and Wyoming
Introduced Locations: Argentina, Belgium, Brazil, China, Colombia, Cuba, Dominican Republic, Ecuador, France, Germany, Greece, Haiti, Indonesia, Italy, Jamaica, Japan, Malaysia, Peru, Philippines, Puerto Rico, Singapore, Spain, Taiwan, Thailand, Uruguay, and Venezuela
Max Size: 6.3 inches

The American Bullfrog is one of the largest frogs in the world which has lead it to be one of the most invasive frogs in the world. Its naturally found in North America but has spread to South America, Europe, and Asia. Their large size gives it an advantage over other frogs when it comes to catching prey and they also just eat other frogs. Invasive American Bullfrogs also can spread diseases and viruses.

In its natural range, the American Bullfrog is one of the last frogs to come out of hibernation and the last to start breeding. Their call is very noticeable and is one of the common sounds of the swamp.


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