All drawings done by Phillip Press

Above pictures were used courteous of Pixabay.com, except for pictures listed below.
Oribi Picture

By Bernard DUPONT from FRANCE (Sudan Oribis (Ourebia montana)) [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons

Bohor Reedbuck Picture

By D. Gordon E. Robertson (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons

Nyala Picture

By Derek Keats from Johannesburg, South Africa [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

Gerenuk Picture

By frederic.salein (originally posted to Flickr as Gerenuks in Samburu) [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons