Sailors from Oliver Hazard Perry-class frigate USS Vandegrift assist in the rescue of a family with a sick infant via the ship's small boat as part of a joint U.S. Navy, Coast Guard and California Air National Guard rescue effort in the Pacific Ocean. U.S. Navy via Reuters.
A. Dust bunnies form from the surprisingly large supply of stuff in the air, including fibers from clothing fabrics and carpeting; hair; animal fur and dander; and especially human skin cells and the dust mites that feed on them, according to Joseph Laquatra Jr., professor of design and environmental analysis at the College of Human Ecology at Cornell.
The fact that household dust is made up mainly of dead skin cells is a myth. House dust is made up of mainly fabric fibers (from clothes, bed sheets, carpets...), bits of dry stuff like food or cardboard, untreated wood and good old fashioned dirt. There's also a lot of skin of course. This can vary considerably from house to house or room to room.