To investigate how this hormone might prepare juvenile amphibians for metamorphosis, the team analyzed levels of mRNA transcripts for leptin receptor proteins and for the hormone itself in tadpoles of ...

Young frogs and toads, after they first hatch from eggs, are called tadpoles. Over the next two weeks they change dramatically, called metamorphosis. First, tadpoles grow back legs ...

ALL accounts of the metamorphosis of the common frog leave it to be tacitly inferred that when the front legs make their way through the operculum branchial respiration ceases, and that ...

The discovery is helping to clear up a long-standing mystery as to when frogs and toads evolved their iconic two-stage life-cycle. "The research demonstrates that a tadpole stage followed by a ...

Unlike most salamanders, they do not undergo metamorphosis, the transformation from tadpole to adult, which is why they retain their juvenile features ...

Southern Darwin's frog tadpoles grow up inside the vocal sacs of their fathers and are 'born' through their mouths as froglets. The brooding dads made an incredible 7,000-mile journey by boat ...

A female crested toad can lay up to 15,000 eggs, which hatch into tadpoles within a day. Those that don’t succumb to predation or habitat destruction reach the metamorphosis stage within 18 to ...

The life cycle starts again. One of the most amazing life cycles in nature can happen in your own back garden or local pond. These are tadpoles. They've hatched from these small jelly covered eggs.