corroonb wrote:
http://en.wikipedia.org/wiki/Cetacean_intelligence
I like whales and dolphins. I like reading about them and watching documentaries about them.
I also love parkour which is a martial art based around the concept of efficiency of movement. Its usually practiced in urban areas and is often called "free-running"
This is a video about it:
http://uk.youtube.com/watch?v=x98jCBnWO8w
'Complex play
Dolphins are known to engage in complex play behaviour, which includes such things as producing stable underwater toroidal air-core vortex rings or "bubble rings".[14] There are two main methods of bubble ring production: rapid puffing of a burst of air into the water and allowing it to rise to the surface, forming a ring; or swimming repeatedly in a circle and then stopping to inject air into the helical vortex currents thus formed.'
Fascinating! I knew dolphins were playful, I wonder why they do this? I never realised how similar a dolphins brain looked when compared to a humans.