Interesting Facts: This species is the largest frog in Singapore. However, it is not native. It is bred commerically for food and has been used as a religious merit-making offering. There has been a noticable increase in the numbers of American Bull Frogs in our reservoirs.

The American Bull Frog has created a devastating effects in the ecosystem of Arizona, California. Much of the fish fauna in these countries is facing extinction; frogs in California and frogs and garter snakes in Arizona are also in critcal decline. These introduced predators eat anything they could swallow, which includes frog-eating snakes, numerous species of frogs, lizards, fish, birds, mice and even their own kind. A female bullfrog can have as many as 20,000 eggs per clutch and has muliple clutches each year. At this breeding rate and their enormous appetite, our native species will be easily wiped out in no time.

Size: over 15 cm

Diet: Feeds on invertebrates such as crustaceans and insects. Also eat other amphibians. It can be a threat to our native species.

Activity: Nocturnal.

Habitat: Mainly aquatic. Found in MacRitchie Reservoir, Lower Pierce, Seletar Reservoir and even Singapore Botanic Garden.

References: A Guide to the Amphibians & Reptiles of Singapore - Kelvin K P Lim

http://biology.usgs.gov/s+t/noframe/x188.htm