Inger's Greater Swamp Frog

Inger's Greater Swamp Frog doesn't shy away from a fight. He battles other males in turf wars over breeding grounds using his "fangs." These bony hooks aren't sharp or poisonous, but they do come in handy during wrestling matches. Surprisingly, males of the species have no mating call—they're voiceless. And they're homebodies. They spend their entire lives within a few yards of their birthplace. These well-camouflaged predators wait patiently along stream banks to pounce on big prey, including other frogs!

Noted Field Museum scientist Robert Inger studied Inger's Greater Swamp Frog (named in his honor) on the island of Borneo. He and other Museum researchers have worked to establish its evolutionary history, range, and environmental needs. Currently, the species is listed as near threatened. These large frogs are often hunted as food, and the streams where they live are damaged by forest loss and silt runoff. Continuing efforts by Field Museum staff are helping to ensure conservation of this fascinating frog and its habitat.