AWESOME SAND BALL GALAXIES!

Small hermit and soldier crabs in Malaysia and Australia build their home digging a deep hope in the sand on a beach. They got a good idea of how to move sand up during his construction. Down in the hole this crab is making sand balls and later push them up to the surface, 2-3 balls at a time. Pushing sand ball more far from the hole they form a kind of sand ball flower or sand ball galaxy. (via)