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Axolotl
A fascinating aquatic salamander that can regenerate not just its legs but also its eyes, spinal cord, heart, and even some brain parts as well! Not like other vertebrates, what is special about this aquatic salamander is that it can regenerate through its lifetime. Scientists are still trying to found out how this specie regenerates tissues just by using their stem cells. Sadly, the axolotl is now considered an endangered species.
