This cool timelapse shows tadpoles develop over the course of 4 minutes ... but they sprout little legs and begin taking on a new shape. I love how It looks like they're all dancing around ...

They can have four legs or no legs at all. You will often find amphibians ... Amphibians lay eggs in water like this frogspawn. The wriggling tadpoles hatch with tails and gills to breathe ...