ChrispenEvan said:

SCIENCE said:

well, hoping to learn today, anyway

¿ why when pluralising “pages” are we meant to write “pp”, likewise specieses “spp” ?

yous lot have probably explained this one before, but we don’t remember

species pluralis
The abbreviation pp. for pages comes from an old Latin convention where doubling the first letter of a word indicates a plural form

The aborigines were doing it first.