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Frogs commonly used name of a group of animals of the order of tailless amphibians. In a broad sense the term refers to all frog representatives tailless detachment. In a narrow sense this title applies to family members of these frogs. The larvae of frogs tadpoles.

Dimensions adults can vary from 8 mm to 32 cm. From the order of have a stocky body protruding eyes a forked tongue and limbs bent under the body no tail. Frog habitat at all stages of development include freshwater ponds and for adults additional land the crowns of the trees and underground burrows. The most typical way of frogs movement is jumping but different kinds mastered additional ways such as: walking and jogging swimming drevolazanie planning .

Covers of frogs are rich in glands skin allocation of some species are extremely poisonous. Color varies from camouflage brown greenish and gray to the brightest red yellow and black colors as a rule signaling the toxicity. The skin is permeable to water but various adaptations allow them to avoid excessive moisture loss on overland lifestyle .

As a rule lay their eggs in water. From the eggs hatch into aquatic larvae tadpoles have gills and tails. Tadpoles go through stages of metamorphosis the end of which turn into adults. At the same time some species lay eggs on land while others do not pass the stage of the tadpole. Adults of most species are predators whose diet consists of small invertebrates but there are also omnivorous species and even a few species that feed on fruit .

Frogs are able to publish a wide range of audio signals especially in the mating season. Observations revealed complex patterns of behavior in mating rituals with the threat to life and other situations .

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