Aardvark 
Aardwolf 
Abacena accincta 
Abana horvathi 
Abantiades labyrinthicus 
Abbot's Bagworm Moth 
Abbott's Day Gecko 
Abdim's stork 
Abdopus aculeatus 
Aberts squirrel 
Abisara geza 
Abisara neavei 
Abracris flavolineata 
Abrosoma festinatum 
Abrosoma gibberum 
Abrupt Epiblema Moth 
Abyssinian Ground Hornbill 
Abyssinian roller 
Acacia blue 
Acacia pied barbet 
Acacia shield bug 
Acacus sapuani 
Acadian hairstreak 
Acadian hermit crab