And no, it's not the birth control pill. Here, you have to try this, my friend Nancy said, sliding a yellow tablet to me across her bathroom vanity. No, it wasn't some hot new party drug, but rather, spironolactone, a prescription diuretic commonly used for people with high blood pressureâand sometimes prescribed to women with acne.
Almost all living organisms can leave fossils, but usually only the hard parts of plants and animals fossilize. Soft internal organs, muscle, and skin rapidly decay and are rarely preserved, but the bones and shells of animals are good candidates for fossilization.n this case, the fossil is a hole in the shape of the animal. By far the most common fossil remains are those of shelled invertebrate sea loving creatures such as snails, corrals, and clams. These make up most of the fossil record.
When an organism is buried quickly, there is less decay and the better the chance for it to be preserved. The hard parts of organisms, such as bones, shells, and teeth have a better chance of becoming fossils than do softer parts.