I dont mean to be nitpicky, but I would like to mention that there are 9 subspecies of Giraffa camelopardalis, this sign only shows coat patterns for 5, plus Okapi (Okapia johnstoni), if they want to give a more complete lesson, they should show all 9 plus the okapi, and even discuss prehistoric Giraffidae (Sivatherium, Bramatherium, Palaeotragus etc)
I find showing all 9 subspecies of Giraffa cameleopardalis especially nessisary, because recent studies have shown that those 9 subspecies are now considered their own full species, but hey at least this sign is teaching more diversity than usual zoo sinage these days
