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Frogs


Gray Tree Frog (Hyla versicolor )

Photo by Hoberg and Gause

Gray tree frogs have the remarkable capacity to change their color from gray to brown or green within just a few minutes. They are medium-sized frogs that can grow to approximately two inches in length. Their toes are tipped with adhesive disks which enable them to climb and cling to smooth branches.

They are often seen on roadways hunting for insects on warm, humid, summer nights. During the day they prefer the shade and protection of trees and shrubs near water. Their diet consists mainly of insections

They are found throughout the aspen woodlands of northeastern North Dakota.

Northern Leopard Frog ( Rana pipiens )

Photo by Hoberg and Gause

Northern leopard frogs are found throughout North Dakota in almost any body of water. Their color may vary from green ti gray and spots may or may not be present. They are powerful swimmers and can leap five to six feet to avoid capture. These frogs are one of the last amphibians to emerge from hibernation in the spring. They mate in ponds and females lay up to 2000 egges which are attached to aquatic vegetation. Their diet includes insects, worms, and other frogs.

Another name for the leopard frog is the "meadow frog." During the summer you may encounter these frogs far away from water.

Wood Frog ( Rana sylvatica )

Photo by Hoberg and Gause

Wood frogs have a characteristic dark mask around the eyes. There is a great variation in the color of the wood frog -- from pink, to brown, to black. No matter what color is described the dark mask is always present.

Wood frogs are found near moist woodlands, and they are very reclusive. In the water they hibernate under dead logs, piles of rocks, and dead leaves. In the spring they are one of the first frogs to emerge from hibernation. Breeding takes place in small ponds and coulees. Their diet includes insects and worms.

These frogs are found farther north than any other tree frog. They have been found in shallow ponds in the Canadian tundra.

More Reptiles and Amphibians.


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Last modified Oct. 7, 1995