1. According to relevant public information, a pair of clams is usually a male and a female. Clams mate after dark. When mating, the male approaches the female and climbs on the female's back. The root of the male tail winds around the root of the female tail to meet it, and leaves after a few seconds. They live in cracks, caves or tree holes in rocks or wilderness, in Woods, open fields, mountains, deserts and houses, and most of them are nocturnal. Most of them are oviparous insects, which lay two eggs at a time. They are mainly distributed in Bangladesh in the west, zhina Peninsula countries in the east and Indonesia and the Philippines in the south.