The scientists were able to pinpoint specific patterns of activity in the brain that represented a few specific 'building blocks', each representing a pattern of interaction between the players.

Today many unrelated animals build their skeletons or shells out of calcium carbonate — including echinoderms, mollusks and corals. Instead of building crystals ion-by-ion from the surrounding sea ...

The RENCO Structural Building System has a straightforward building pattern and the blocks are very lightweight. “A concrete block weighs about 37 lbs when it's dried out.