Going further, the scientists repeated their experiment on another vertebrate of the amphibian family, Xenopus.
From the sciencedaily.com
Also known as Taricha torosa, this newt is an amphibian and a member of the Salamander family.
From the scienceblogs.com
The transition from fish to amphibian was finally completed about 340 million years ago with the evolution of the first known family of amphibians, the temnospondyls.