From the article it looks like enjoyment means “taking an action without apparent incentive to do so”

This is interesting but I wonder if a more concrete way could be developed to determine if they actually find the activity enjoyable in the sense that most of us would use the term.

Me too bumblebees, me too.

I love this more then I can express in words.

The article didn’t actually have a link to the paper, so here it is, if anyone is interested.

https://www.sciencedirect.com/science/article/pii/S0003347222002366