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The spring peeper is a small species, attaining an adult size between 0.75 inches (19 mm) and 1 inch (25 mm) long. They have a dark cross on their backs roughly in the shape of an "X" (thus the Latin name crucifer, for cross)[1], though sometimes the marking may be indistinct. The color variations of the P. crucifer are mostly tan, brown, olive green, and gray. Females are lighter-colored, while males are slightly smaller and usually have dark throats. This frog has a vocal sac located by its throat, which expands and deflates like a balloon to create a short and distinct peeping sound. Only males have the ability to make this loud high-pitched noise, and they use it to attract mates. This creature lives in wetlands, marshes, and pond or swamp regions in order to support the aquatic environment the larvae need. The Spring Peeper breeds between the months of March to June, and deposits around 900 eggs that are hidden under vegetation or debris at the water base. After hatching, they transform into frogs and are ready to leave the water in about eight weeks.
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