Frog of the Week

American Bullfrog (Rana catesbeiana)

American Bullfrog
Common Name: American Bullfrog
Scientific Name: Rana catesbeiana
Family: Ranidae – True Frog family
Native Locations: Canada, Mexico, and the United States of America
US State Locations: 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. It is 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 It is also the last to start breeding. Their call is very noticeable and is one of the common sounds of the swamp.

The Bullfrog breeds in permanent bodies of water such as lakes and ponds. Males will select territory in the shallows of those water bodies. The females select a male to mate with, generally selecting the largest, oldest males. Males have bright yellow throats, while the females have white throats.


69 thoughts on “American Bullfrog (Rana catesbeiana)”

Leave a Reply