This vital evolutionary behaviour is a living stream, which I even now observe in Zion the wonder dog.
He needed a new bed.
I had a Four Poster Canopied Bed in mind, but I could not find one in canine size.
So I settled for this:
He's tried it out, but he is not yet excited or appreciative.
True to canine form he is both inquisitive and cautious.
Ain't evolution and adaptation wonderful!