I do not mean to be pedantic, but this is topic I love.

Marsupials do not fill a niche by virtue of their lack of placement. Instead, they have survived so long by virtue of their isolation.

It turns out that the adaptions required for marsupials to birth and raise young without a placenta make them inferior to placental mammals in almost every scenario. They get out competed and die off in almost every instance. South America had marsupials, not placentals, until it formed a land bridge with North America. What happened then? All the marsupials died off with the weird exception of the American possum. The placentals straight up out competed them across the board.

Australia has kept marsupials only because of its extreme isolation. When any type of placental mammal has been introduced to Australia, it has ruined the ecosystem and taken over the niche it fills.

Independent of humans, marsupials are a dying design. We just happen to live at a time when we can see that extinction in process. Yes, humans have sped it up by more rapidly introducing placental species, but we can see how it happened without human intervention as well.

Various forms of the kangaroo build are spreading across the world, it's apparently a pretty efficient form factor. Wallabies I believe have spread to England, Vietnam?, and the US and are now invasive species in every continent.

I can't believe you've done this

Damn thats cold yet the way you said it and the way it gives a new dimension to the image is funny

They have no natural predators (maybe eagles?). It's an island with pretty much just them. They live very peaceful lives rest assured

It really looks like it. I immediately didn't like it... Like it looks super off.

The image first hit the net in May 2020. Was AI good enough back then?

NatureAI

No. These exist, have no fear of humans (no predators on their island) and really are happy little chilled fellas.

I don't see one boob, let alone three