11/11 The dexterity hypothesis. Perhaps because it is more obvious, but the evidence is much stronger in species with great dexterity, whether in their mouths, limbs, or sensory organs. While play is common in monitor lizards and turtles, it is very rare in amphibians.

2/11 The examples are many and varied, from sunfish that jump out of the water for no apparent reason to turtles and bearded dragons that play with dogs (playing ball or tug-of-war with toys).

www.youtube.com/watch?v=dHAl...