The sentence you quote from Wikipedia starts like this:

> The bonobo (/bə.ˈnoʊ.boʊ/ or /ˈbɒ.nə.boʊ/; Pan paniscus), formerly called the pygmy chimpanzee and less often, the dwarf or gracile chimpanzee

Also see https://en.wikipedia.org/wiki/Chimpanzee:

> The taxonomical genus Pan (often referred to as chimpanzees or chimps) consists of two extant species: the common chimpanzee and the bonobo.

It's like "crow", which can refer to a particular species (e.g., in England a crow, unqualified, usually means a carrion crow), or to the genus Corvus, which includes e.g. ravens and rooks.

Or Jackdaws! (Here’s the thing....)