Hyla regilla is a small frog that measures between .75 and 2 inches in length, according to the U.S. Geological Survey. This abundant amphibian thrives in altitudes from sea level to over 11,000 feet.
Although breeding time varies with altitude, Pacific tree frogs generally mate between early winter and early spring. After fertilization, both the male and female abandon the eggs.
Depending upon the water temperature, the eggs hatch three to seven days after fertilization. It takes an additional three months for the tadpoles to undergo the full metamorphosis necessary to begin the life of a frog.
Hyla regilla tadpoles feed on plant material, according to the University of Michigan's Museum of Zoology. Upon adulthood however, these amphibians prey upon tiny flies and insects, which they capture with their tongues.
Although hyla regilla are called Pacific tree frogs, they prefer to live on the ground in moist areas that lie close to springs, ponds, swamps or other bodies of water.