THE 5-SECOND TRICK FOR WESTERN GRAY KANGAROO

Endothermy is actually a synapomorphy of the Mammalia, although it may have arisen within a (now extinct) synapsid ancestor; the fossil record will not distinguish these opportunities. Convergent in birds. There's two subspecies in the western grey: Macropus fuliginosus fuliginosus which lives on Kangaroo Island, and Macropus fuliginosus melanops,