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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.
The jellynose fishes or tadpole fishes are the small order Ateleopodiformes. This group of ray-finned fish is monotypic , containing a single family Ateleopodidae . It has about a dozen species in four genera , but these enigmatic fishes are in need of taxonomic revision.
The tadpoles also had constant activity in the streams as well. They also have a huge influence on the number of tadpoles in the environments they are in. [ 18 ] Due to increasing population in India where the purple frogs are native to, large open areas where purple frogs typically reside are being reconstructed for agricultural and settlement ...
According to ITIS and WoRMS, this family is classified into 4 genera, although the 4 genera from each database has a little bit difference.The classification from the taxonomy by Bouchet & Rocroi (2005), [3] which is based on classification by Taylor (2003): [7] Taylor classifies Physidae according to the anatomical differences of their penis, the differences among the penial complex, penial ...
The eggs hatch and the tadpoles take 30 to 55 days to develop before undergoing metamorphosis into juvenile toads about 1 cm (0.4 in) long. The tadpoles feed on algae which they scrape from underwater vegetation. Adults are carnivorous and feed on any small invertebrates they can find. [6]
The juvenile may be a tadpole for 3 to 4 years before undergoing metamorphosis. [8] However, this rate heavily varies depending on the temperature and elevation of the area. [7] There are two classes of tadpoles: first year tadpoles and second year tadpoles. Metamorphosis tends to happen the second summer of tadpole life.
Lepidurus glacialias, very similar in body shape to Lepidurus apus. Lepidurus apus, commonly known as a tadpole shrimp, is a notostracan in the family Triopsidae, one of a lineage of shrimp-like crustaceans that have had a similar form since the Triassic period and are considered living fossils.
Most species (e.g. Blyth's river frog L. blythii or the fanged river frog L. macrodon) develop normally, with free-swimming tadpoles that eat food. [5] The tadpoles of the corrugated frog (L. laticeps) are free-swimming but endotrophic, meaning they do not eat but live on stored yolk until metamorphosis into frogs. [5]