Tadpoles grow their hind legs first, because tadpoles mainly rely on their hind legs to swim. In the process of transforming into a frog, the tadpole's tail will slowly disappear, so the hind legs grow first and then the front legs. , the tadpole’s movement will be more convenient.

How to tell the difference between male and female tadpoles:

Tadpoles cannot tell the difference between male and female. They can only tell the difference when they evolve into young frogs, because It can only be distinguished after the tail has degenerated. The female frog is larger in size, gray in color, and generally does not cry. The male frog is smaller in size, bright in color, and has a bright and crisp cry. Moreover, the male frog cries and his chin looks looser. The female frog is smaller and has a bright color. No, the chin is tight.