Zoology · Ch 4 — Organ and Organ Systems in Animals
The Common Indian Green Frog - Rana hexadactyla
4.3
The Common Indian Green Frog - Rana hexadactyla
Rana hexadactyla, the common Indian green frog, belongs to Phylum Chordata, Class Amphibia, Order Anura - the largest amphibian order, containing frogs and toads. Amphibians were the first vertebrates to colonise land, roughly 360 million years ago, and frogs still show that dual heritage: early development is fully aquatic, with the young breathing like a fish, while the adult becomes an air-breathing, carnivorous land-and-water animal that feeds on insects, worms, small fish, slugs and snails near fresh-water ponds, streams and moist ground. Because their body temperature simply follows the surroundi …