There are, says Professor Julia Sigwart, an American mollusc specialist (malacologist), species makers and species users. The former are the taxonomists, and they identify, name and record species in technical journals and store the type specimens (the original specimen that ‘bears’ the name) in museums and other collections. There are way too few of these. The latter – well, that includes everybody, according to Sigwart. She notes in her 2019 book What Species Mean (chapter 3) that looking out of her window she sees species of tree, animal, bird and other living things, and that this knowledge involves two main steps: knowing that something is different from other similar (or related) things; and giving it a unique name to communicate and identify it to other users, for the taxonomists are also users of species. Knowing and naming species are related activities, but not the same.