Take a leisurely look around the animal kingdom, and you will find some indisputable instances of play. There are plenty of viral videos that show baby elephants and bears rolling around in the mud ...
In 2017, scientists in the UK carried out research suggesting that the small brain of the bumblebee may be more sophisticated than we realize, demonstrating how they could be trained to roll balls ...
Bumblebees play, possibly just for the fun of it. The insects repeatedly chose to roll wooden balls in an experiment despite having no clear reward for doing so. The discovery may be the first ...