Duck Billed Platypus swimming and floating on water at Henrietta Creek

water duck billed platypus venomous mammal endangered bill river ripples semi aquatic floating lake swimming australian wild animal wildlife nature canal bubble aquatic underwater natural tasmania monotreme environment endemic unique rare eastern australia evolutionary biology wooroonooran national park atherton tablelands queensland pond fauna territory henrietta creek green texture reflection ornithorhynchus anatinus ornithorhynchidae ecology ecosystem biodiversity wilderness