Rosa Parks was sitting in the colored section of the bus during the infamous incident in Montgomery; she was asked to vacate her seat, in the front row of the colored section, because the white portion of the bus was filled.

The lesser mole rat not only digs an entire subterranean house for itself, complete with storerooms, halls, bedrooms, and a “wedding chamber” where all mating takes place, but actually constructs a separate bathroom which, when filled, is sealed off from the rest of the house.