A Duttaphrynus melanostictus sheds its skin.
JASMINE VINK
While sloughing off their skin, amphibians can increase sodium uptake to make up for the ions that leak out, according to a new study by Australian scientists.
See N.C. Wu et al., “Living with a leaky skin: upregulation of ion transport proteins during sloughing,” Journal of Experimental Biology, doi:10.1242/jeb.151738, 2017.