Millions of people live with amputated limbs that are gone forever. But that might not be the case in the future. For the first time, scientists have shown that adult frogs can regrow amputated legs.

For millions of patients who have lost limbs, the possibility of regaining function through natural regeneration remains out of reach. Regrowth of legs and arms remains the province of animals such as ...

Holding the baby pixie frog beside a full-grown adult makes the difference between life stages easy to understand. The baby is small enough to sit comfortably on a hand, while the adult has a broad ...

The snake was already facing serious challenges from habitat loss and changes to waterways. Then came another threat: the ...

Normally, the tadpole of a frog or toad species is much smaller than the adult frog of that same species. Ironically, however, the record for the greatest size difference between a tadpole and an ...