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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.
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.
Tadpoles are intermediate in morphology between those of ranids and microhylids. They have rows of oral papillae, but not keratinized teeth or horny beaks. The unique Scaphiophryne larval morphology allows for filter-feeding and the ability to use the papillae to wipe particles from substrate and churn particles from the bottom of the water ...
Pseudis paradoxa, known as the paradoxical frog or shrinking frog, is a species of hylid frog from South America. [2] Its name refers to the very large—up to 27 cm (11 in) long—tadpole (the world's longest), which in turn "shrinks" during metamorphosis into an ordinary-sized frog, only about a quarter or third of its former length.
As tadpoles, the squirrel tree frog is preyed upon by dragonfly nymphs, giant water bugs, predatory fish and newts. [2] [3] Once the tadpoles metamorphose, the predators of the frogs change to small mammals, other frogs, snakes, birds. [2] To reduce the danger of being eaten as tadpoles, they use dense vegetation as cover. [4]
The tadpoles of Leptobrachella are unusual in their vermiform or eel-like appearance. The transition from the narrow, cylindrical trunk into the strong tail is nearly seamless, and the tail fin is very low. This body shape is interpreted as an adaptation to a fossorial life style: Leptobrachella tadpoles
Magyar; Македонски ... groups, are generally semiaquatic; the first stages of their lives are as waterborne eggs and fish-like larvae known as tadpoles, ...
In most species, the tadpoles are endotrophic (developing without external food sources) and develop in water housed in small hollows in the forest floor or holes at the end of flooded tunnels. [2] Males call from inside burrows and may engage in duets with their nearest neighbours. [ 3 ]