how long from tadpole to frog uk
frog tadpoles Rana temporaria After about 21 days as spawn, the embryonic frog leaves its protective jelly as a tadpole, complete with organs, gills and a long tail.Frog and toad tadpoles are very difficult to tell apart so please only record frog tadpoles where you have already recorded frog spawn.fter about 21 days as spawn, the embryonic frog leaves its protective jelly as a tadpole, complete with organs, gills and a long tail.