spring peeper

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Animals & Nature

spring peeper

amphibian

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Also known as: Pseudacris crucifer

Written and fact-checked by The Editors of Encyclopaedia Britannica

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spring peeper

Category: Animals & Nature

Related Topics:: chorus frog

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spring peeper, (species Pseudacris crucifer), small tree frog (family Hylidae) found in woodland areas in the eastern United States and Canada. Outside of the breeding season, when it may be found in ephemeral woodland ponds, it is seldom seen.

The spring peeper, with its high, whistling call, is one of the first frogs to vocalize and breed in spring. Larvae metamorphose into tiny froglets in two to three months. It is grayish, tan, or olive brown with an X-shaped, often irregular, brown mark on its back, and it grows to a length of about 2 to 3.5 cm (0.75 to 1.3 inches).

Black eyed tree frog (Agalychnis moreletii)

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This article was most recently revised and updated by Amy Tikkanen.