The Crabs

I was walking along the beach when a swarm of crabs came out of the ocean and began walking in unusual geometric formations before my very eyes.
Then, they stacked up in a pyramid, building up until the crab at the tippy top got in position, waving its claws around.
After gracefully disassembling the pyramid, they slowly walked back into the ocean.
Last night, it was turtles.
The night before, it was lobsters.
Do you think the ocean is trying to tell us something?
Probably, but I sure do like the gymnastics routines.
I wonder what will do them tomorrow.