I wonder if animals have always seen frogs as unpleasant medicine they need to eat occasionally. My dog would happily scarf them down if I let him. Or does it have to be IV administered?

Also who thinks -- "hmm we've found a new random bacteria --- let's give a bunch of tumors to mice and then IV inject this random thing into them!"?

There must have been something about the microbe that gave them a hint. Maybe it's in the cited original article and was left out of the blog post.

> unpleasant

> happily

I think you answered your own question really, a lot of animals just enjoy eating them (humans included!)

Humans can go very far in exploring all kind of variation in whatever craze they get addicted to, all the more if they get all the room and resources to do so.

maybe your dog is chasing a high from some rare toad mutation...