Earthworms swallow soil, extract nutrients from it, then excrete the rest up onto the surface.
You probably feel like your sleeping schedule is out of whack in some manner. Either you sleep too much, too little, or wake up too often. In fact, the typical eight hour uninterrupted sleep is what’s really unnatural. Learn more on this Moment of Science.
A natural by-product of the distillation of crude oil, bitumen is a thick, gooey substance usually black or dark brown in color.