Common Reptile and Amphibian Species of Northwestern Ontario





Rana clamitans
Green Frog


Distinguishing Features - Large. Overall colouration, green or brown with few markings except for occasional small black dots or dashes. Young specimens may be heavily spotted. Upper lip, bright green. Underside, light with some gray or brown markings. Adult males generally have bright yellow throats. Males also possess tympanums, circular eardrums, behind large eyes.

Green Frog Size -
up to 10 cm (4 in)


Found throughout the southern regions of Northwestern Ontario in and around permanent bodies of water such as ponds, lakes, marshes, and other wetlands, such as streams and rivers.


Green frogs breed from May through July. Males defend territories from other males. Females lay 3,000 to 4,000 eggs in a large mat. Tadpoles are green with small black dots and sometimes with yellow bellies and morph in the second year.


Green frogs spend their time at the water's edge waiting for prey and will eat anything that they can catch and swallow; mostly insects, earthworms, and even small fish such as minnows.

When alarmed, they give off a warning call, a meap!, before leaping into the water.

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