Nature - Robert Downie
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Blue Flyer

A Blue Flyer or female Red Kangaroo (Macropus rufus). Unlike the predominantly red males the females have blue-grey fur. Amazingly female red kangaroos are usually permanently pregnant, except on the day they gives birth. They have the ability to freeze the development of an embryo until the previous joey has permanently left the pouch which occurs after about 235 days. The ability to halt development of a fertilised egg is known as diapause, and evolved in response to the extremely variable climatic cycles of the Australian outback. Paroo-Darling National Park, Outback New South Wales, Australia.

AustraliaMacropus rufusNSWanimalaridblueblue flyercountrydiapausefieldgrassgrasslandsgraykangaroolake mungonew south walesno peopleoutbackred kangaroowildwildlife