more signs...
"Playing around

Most mammals seem to enjoy play - but dolphins seem to like making their games as challenging as possible. A killer whale calf learned the trick of luring gulls to the surface of the water with fish. When the gulls landed on the water, the killer whale would then attempt to capture them in her mouth, without killing them.

Once she mastered this skill, she made the task more challenging for herself: instead of waiting for the gulls to land on the water, she tried to capture the gulls on their descent when they were more than a metre above the water surface. "

as Robin Williams once pointed out on the PBS special dolphins can also recognize images on TV screens and respond accordingly.

So long, so long, so long and thanks-
for all the fish!

at long last they will dis-cover that the higher the level of playfulness the higher the level of being conscious ....