Adult male platypus (Ornithorhynchus anatinus) in shallow water. Perfectly designed for underwater life, the platypus has two layers of fur. The first is short and dense and never lets water through to the skin. The second is longer and is the layer of fur that gets wet. The bill is a streamlined nose and mouth for sniffing and snuffling up pond bottom delicacies like shrimp. Crows Nest, SE Qld. Australia.