Wood frog — size comparison

The wood frog is a small North American amphibian. It has a brown, buff or reddish back, a dark mask through the eye and a pale line along the upper lip. Adults

Silhouette comparison

Length

od pyska do kloaki · bez kończynReference values · details in the profiles

Wood frog

Lithobates sylvaticus

ok. 5,6 cmPrzykładowy osobnik · płeć nieokreślona
Snout–vent length

od pyska do kloaki · bez kończynMeasurement: side

Mass
Nie przypisano masy zilustrowanemu osobnikowi
Shared ground line. The scale follows the measurement stated for each animal. Boy: approx. 115 cm
Snout–vent lengthScale in cm
0246
Wood frogSnout–vent lengthapprox. 5.6 cm

The scale compares the named dimensions. View direction and measurement points are given for each animal.

Scale based on the stated dimensions for each animal

Boy: approx. 115 cm
Wood frog — size comparison — facts and sources

The wood frog is a small North American amphibian. It has a brown, buff or reddish back, a dark mask through the eye and a pale line along the upper lip. Adults may move away from water and live in damp litter.

It winters in shallow hollows beneath dead vegetation and snow. It can survive partial freezing of body water: glucose, among other substances, helps protect cells from damage. Tolerance depends on population and conditions and does not mean resistance to arbitrary freezing.

In spring frogs gather in shallow waters, including temporary pools. Males attract females with calls resembling short duck quacks. Tadpoles develop in water before young move onto land.

It occurs in forests, meadows, tundra and wetlands, using shallow pools during breeding. Its diet includes small invertebrates such as insects and spiders. Colours vary with the individual and lighting; illustrations are approximate reconstructions.

3,1–8,1 cm SVL u dorosłych według Alaska Herpetological Society; 5,6 cm to środek zakresu, nie średnia populacji. Płeć zilustrowanego osobnika nie została określona. Ujęcie boczne kalibruje opisana oś ciała; przód przenosi skalę przez przybliżone odpowiadające sobie wymiary głowy. Wysokość pozy i szerokość przodu wynikają z proporcji ilustracji, nie są osobnymi pomiarami biologicznymi.

Measurement sources