SPENCER SUTTON / SCIENCE PHOTO LIBRARY SPENCER SUTTON / SCIENCE PHOTO LIBRARY
Colour enhanced illustration of a Duckbill Platypus, Ornithorhynchus anatinus, a semi-aquatic mammal endemic to eastern Australia and Tasmania. Together with the four species of echidna, it is one of five species of monotremes, mammals that lay eggs. A spur on the hind legs of the males is used to deliver a venom.
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