That’s because I breathe through my skin like frogs and toads. I like to live near a pond or lake as like all amphibians I need wet skin all the time. If I get scared I can shed a limb like an arm and grow it back.
Up to 20 years
50 to 125g
10 to 20cm (mostly)
Can regenerate lost limbs and even new lens or retina in the eye.