Sadly the green won't last...  Our puppy lost all his wonderful colouring as he grew older.

Awwwwww

The evolutionary history of man's best friend - Razib Khan, Quillette, 29 October 2020
https://quillette.com/2020/10/29/the-evolutionary-history-of-mans-best-friend-revealed/

Man and dog share a long history. In much of the world, a history as old as humanity. The latest genetic evidence now tells us that the emergence of the domestic dog lineage occurred soon after the human expansion out of Africa 50,000 years ago, in the depths of the last Ice Age. We came. We saw. And we befriended. This we knew, but now we can closely examine how. A paper out today in Science in Science uses 27 ancient dog genomes from the past 11,000 years to construct an evolutionary history nearly as rich as that produced by human population geneticists over the last decade.

From the article in Science:

That's really cool, thanks!

You're welcome.  I'm actually more of a cat person than a dog person, but I'm keenly interested in evolution and migration, both human and non-human.

My avatar appreciates the compliment.

Though, she'd be pretty nonchalant about it.