Macropus giganteus

Eastern Grey Kangaroo at Rendezvous Creek, ACT

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Identification history

Macropus giganteus 16 May 2026 DonFletcher
Macropus giganteus 15 May 2026 HelenCross

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Not sure why some Eastern Greys get this particular marking across their nose?

4 comments

DonFletcher wrote:
   16 May 2026
@HelenCross it develops with age.
HelenCross wrote:
   16 May 2026
Thanks Don, do most older roos have this marking?
DonFletcher wrote:
   Yesterday
Hi Helen, Good question. Now that I think about it, some APPARENTLY old males don't have grey muzzles. But maybe they are just battered and well worn young males??? As for females, I'm not convinced that I could tell an old one by anything other than the grey muzzle.

The definitive thing for ageing is their 'molar progression' but no one has ever done that on live roos. I aged over 1,000 that way but did not record the colour of fur on their muzzle.
HelenCross wrote:
   Yesterday
Thanks Don

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