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A tadpole or polliwog (also spelled pollywog) is the larval stage in the biological life cycle of an amphibian. Most tadpoles are fully aquatic, though some species of amphibians have tadpoles that are terrestrial. Tadpoles have some fish-like features that may not be found in adult amphibians such as a lateral line, gills and swimming tails.
As a generalized system, Gosner stages may not be adequate for describing development of some anuran tadpoles. [3] For example, in the torrent-dwelling tadpoles of Ansonia longidigita and Meristogenys orphnocnemis , the usual Gosner stages become inappropriate beyond the stage 41 because the tadpoles retain their oral disc longer than the ...
The tadpoles of Rhacophorus kio are a light olive color with a white colored abdomen. The fins of the tadpole are mainly colorless, with the edges near the tail being a lighter grey color. The body of the tadpole is oval-shaped, widest around the gill area, and displays a rounded snout.
Tadpoles are highly vulnerable to being eaten by fish, newts, predatory diving beetles, and birds, particularly water birds, such as storks and herons and domestic ducks. Some tadpoles, including those of the cane toad (Rhinella marina), are poisonous. The tadpole stage may be as short as a week in explosive breeders or it may last through one ...
The tadpoles of this species are mottled brown in color and grow to about 6 cm in length. They may complete metamorphosis (the process of changing from a larval stage to an adult) in about a month. During the breeding season, the striped rocket frog makes a distinctive "wick wick" call to attract mates.
The tadpole's head and most of its body are preserved. Frogs have a two-stage life cycle, with the aquatic tadpole larva metamorphosing into the adult form. This tadpole was in the late stages of ...
Upon hatching, the tadpoles remain on the moist surfaces, undergoing metamorphosis without ever entering any standing bodies of water. In the 2010 study, all of the egg clutches and the tadpoles were found at least 3 m (9.8 ft) from the nearest pool of water. The eggs and tadpoles are instead kept moist by dripping water from leaves and ...
The bird-voiced tree frog is a small species growing to about 5 cm (2.0 in) long. It is usually a dappled, pale grey or brown on its dorsal surface, but its color changes with the temperature and its level of activity, and may be more or less pale green. It often has a dark brown cross-shaped mark on its back and further dark areas on its limbs.