One pair of our MZA twins discovered, at their reunion last year, that they were both in the habit of wearing seven rings. There is certainly no gene or set of genes devoted to "ringedness"; this may be only mere coincidence yet I am inclined to think of an emergenic explanation. Another pair, middle-aged when they first found each other, are both given to giggling; it was difficult to catch them in a photograph with both wearing a sober expression. No one in either of their adoptive families was similarly inclined. In the backyards of another pair there are circumarboreal benches which each twin planned and built before they learned of each other's existence. Another pair both had claustrophobia and would enter my experimental chamber only if the door was tied open. This same pair discovered, while they were in Minneapolis, that they both compulsively count things, the wheels on a bus, the rooms in a house, and so on. Before leaming that they had a twin, both had formed the habit, when at the beach, of entering the water backwards and only up to the knees.

3:37:05 PM