The first transparent frog has been bred by scientists in Japan so they can see changes in the body without dissecting it.
The frog has a yellow colour to its skin but it is clear enough to see through, allowing researchers to observe its organs and blood vessels.
The lead researcher in Japan, Professor Masayuki Sumida, said it is possible to observe how organs grow and how cancer develops.
The frog was bred from rare mutants of the Japanese brown frog using artificial insemination and Professor Sumida said it is the world's first see through four-legged animal.
Article [VIA]