EVERYDAY SCIENCE

Detailed explanation-1: -s tail fin is remarkably fragile-just a double layer of skin with no skeletal support. Yet despite being about as easy to tear as wet tissue paper, the tail fin is stiff enough to provide thrust when the tadpole is swimming.

Detailed explanation-2: -The tails of tadpoles from several species exhibit polyphenism, which allows them to rapidly change shape (and color) in response to predators.

Detailed explanation-3: -Tadpoles are, of course, frog larvae-they look similar to large-headed fish, and even have gills. But their gills are not developed enough to provide them with enough air to survive. Because of that, tadpoles must swim to the surface periodically and breathe in some air.

Detailed explanation-4: -tadpole, also called polliwog, aquatic larval stage of frogs and toads. Compared with the larvae of salamanders, tadpoles have short oval bodies with broad tails, small mouths, and no external gills. The internal gills are concealed by a covering known as an operculum.