Axolotls, which breed well in captivity, are popular research subjects in the fields of aging and regenerative medicine. For humans, aging is inevitable. But axolotls, those cute, smiling ...
More often, though, they’re a cosmetic problem, as the toenail may become thick, discolored, or cracked. You can pick up a toenail fungus from your environment. They often get in through small cracks ...