Common predators of frogs, specifically green frogs, include snakes, birds, fish, herons, otters, minks and humans. Wood frogs are also known to be preyed upon by barred owls, red-tailed hawks, crayfish, large diving beetles, Eastern newts, blue jays, skunks and six-spotted fishing spiders.
Out of an estimated 4,740 known species of frogs, 90 of these are found in the United States. Due to their natural abundance, frogs are a common food source to a variety of animals. Frog eggs and tadpoles are frequently eaten by leeches and large marine insects. Other known predators include opossums, skunks and turtles. Frogs, which are considered to be an indicator species, play an important role in the ecosystem because they act as hunters and prey.