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    American bullfrog

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    Introduced to many regions where it is now considered an invasive species

    Will Brown








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    American bullfrog

    EXEWCRENVUNTLCDDNE

    Introduced to many regions where it is now considered an invasive species

    Population

    A large, robust frog native to eastern North America. They have a powerful, stocky build with large, muscular legs ideal for leaping and swimming. Their skin is usually green or olive-colored, with darker bands on their limbs and greyish-white underbellies. Preferring warm, still waters, these frogs thrive in ponds, lakes, and slow-moving streams where vegetation is abundant. They are aquatic hunters, lying in wait for just about any creature they can overpower and swallow whole, including insects, small mammals, birds, and other amphibians. American Bullfrogs are known for their opportunistic eating habits and will consume almost anything that fits into their mouths.

    American Bullfrogs are mostly nocturnal, becoming most active at night when they hunt and mate. Their call, a deep and loud “jug-o-rum”, is unmistakable and can be heard from far away, serving both to attract females and to ward off rival males. Males are territorial during the breeding season and will aggressively defend their patch of water.

    While the American Bullfrog is not threatened in its native range, its introduction into non-native areas has caused ecological disturbances. As voracious predators and competitors, they often outcompete and prey on local species, disrupting natural ecosystems. Their resilience and adaptability make them a difficult invasive species to control. In some regions, they are harvested for their legs, which are considered a delicacy in many cuisines around the world. They are also popular in the pet trade and are used extensively in scientific research due to their large size and relatively simple care requirements.

    Distribution

    Country
    Population est.
    Status
    Year
    Comments
    Argentina
    2020
    Introduced
    Belgium
    2020
    Introduced
    Brazil
    2020
    Introduced
    Canada
    2020
    China
    2020
    Introduced
    Colombia
    2020
    Introduced
    Costa Rica
    EX
    Extinct locally, Introduced
    Cuba
    2020
    Introduced
    Dominican Republic
    2020
    Introduced
    Ecuador
    2020
    Introduced
    France
    2020
    Introduced
    Germany
    2020
    Introduced
    Greece
    2020
    Introduced: Kriti
    Indonesia
    2020
    Introduced
    Italy
    2020
    Introduced
    Jamaica
    2020
    Introduced
    Japan
    2020
    Introduced
    Malaysia
    2020
    Introduced
    Mexico
    2020
    Introduced
    Netherlands
    2020
    Introduced
    Peru
    2020
    Introduced
    Philippines
    2020
    Introduced
    Puerto Rico
    2020
    Introduced
    Singapore
    2020
    Introduced
    Spain
    2020
    Introduced
    Taiwan
    2020
    Introduced
    Thailand
    2020
    Introduced
    United Kingdom
    2020
    Introduced
    United States
    2020
    Introduced: Hawaiian Is.
    Uruguay
    2020
    Introduced
    Venezuela
    2020
    Introduced

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    Get to know me

    Terrestrial / Aquatic

    Altricial / Precocial

    Polygamous / Monogamous

    Dimorphic (size) / Monomorphic

    Active: Diurnal / Nocturnal

    Social behavior: Solitary / Pack / Herd

    Diet: Carnivore / Herbivore / Omnivore / Piscivorous / Insectivore

    Migratory: Yes / No

    Domesticated: Yes / No

    Dangerous: Yes / No

    EXEWCRENVUNTLCDDNE
    Least Concern(IUCN)
    World Population
    Added by BioDB
    Become a Patron

    Threats

    Habitat destruction / Climate change / Freshwater pollution / Marine pollution / Deforestation / Farming / Fishing practices / Poaching & wildlife trade / Invasive species / Parasites & diseases / Noise pollution / Light pollution

    My ID

    Scientific name: Lithobates catesbeianus Other names:

    Bullfrog

    Physical traits

    Length: 4 – 6 in (9 to 15 cm) Weight: 5 – 175 g (0.18 – 7 oz) Lifespan: 8 – 10 years Incubation: 3 – 5 days Eggs: 20,000 eggs
    Habitats: Fresh water Lakes Marsh Swamp
    Regions: Asia Europe North America South America
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