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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.
Tadpoles grown in sibling groups metamorphosed faster than those that were kept in mixed groups. [4] Tadpoles have been shown to be able to recognize kin. [5] The 96h LC50 of commercial grade malathion for the tadpoles is 7.5 mg/L and sublethal levels of exposure can impair swimming. [6]
Information on tadpole development was observed from a group that was regurgitated by the mother and successfully raised in shallow water. During the early stages of development tadpoles lacked pigmentation, but as they aged they progressively develop adult colouration.
These are frog eggs. This is how we're used to frogs having babies. They lay eggs, those eggs hatch into tadpoles ... and you learned the rest in science class. However, a newly discovered species ...
Fortunately, a conservation team has been deployed in order to manage the recovery of the Mississippi gopher frog by managing the habitat, supplementing habitat with sufficient water, raising tadpoles for release, constructing or restoring new breeding sites, and managing ecological requirements and diseases.
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During the final stages of transformation when the tadpoles have four limbs and a tail, they stop feeding for a short time while their mouths widen and their digestive systems adjust from herbivorous to carnivorous. Pacific tree frogs mature quickly, and usually mate the season after metamorphosis. They can live up to eight years in captivity.
Both adults and tadpoles of the species are known to be occasional cannibals. [8] [10] [11] The tadpoles of this species are obligate carnivores that swallow their prey whole. [10] The diet of L. laevis tadpoles is similar to that of adults and includes snails, insects, other tadpoles, and crustaceans. [9]
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