Over the years, as I grabbed degrees like an elephant does marula fruits in spring, there would be long discussions between my scriptures-quoting pater and I. “Show me the intermediate species,” he would challenge. “Show me the missing link.” When I tried to explain that evolution didn’t quite work that way, but that you had to draw lines back to common ancestors, a sharp “pah!” was usually the best I’d get.
A smart thing to do would have been to pull out a chart of all the Southern African antelope. I could have recited, more or less from largest to smallest dik-dik (two species), suni, red duiker, blue duiker, common duiker, steenbok, grysbok, klipspringer, springbok, oribi, impala, bushbuck, lechwe, puku, kudu, nyala, sitatunga, rhebuck, reedbuck (two species), tsessebe, roan, eland … and that’s only the fawn coloured ones … but I didn’t. Had I pulled out two Aces, those bizarrely long-necked species from East Africa the gerenuk and the dibatag, I might just have won a hand. But again I did not think of it in the heat of the fray.
Sitting, or swinging, on the monkey branch of the Tree of Life there are 278 species in total, 119 of which occur in Africa. These, the so-called Old World monkeys, are divided into two main groups: the colobus monkeys and the pouch-cheeked monkeys (plus a small gang of great apes, like us).