Wikipedia:Today's featured article/March 27, 2006

From Wikipedia, the free encyclopedia

Frog is the common name for amphibians in the order Anura. Adult frogs are characterised by long hind legs, a short body, webbed digits, protruding eyes and the absence of a tail. Most frogs move by jumping or climbing. Most frogs have a semi-aquatic lifestyle. They typically lay their eggs in puddles, ponds or lakes, and their larvae, called tadpoles, have gills and develop in water. Adult frogs follow a carnivorous diet, mostly of arthropods, annelids and gastropods. Frogs are most noticeable through their call, which can be widely heard during the mating season. The distribution of frogs ranges from tropic to subarctic regions, with most of the species found in tropical rainforests. With over 5,000 species described, they are among the most diverse groups of vertebrates. However, their declining numbers are increasingly giving cause for concern. A distinction is often made between frogs and toads on the basis of their appearance, prompted by the convergent adaptation of so-called toads to dry environments; however, this distinction has no taxonomic basis. (continued...)

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