Aardvark 
Aardwolf 
Aberts squirrel 
Addax 
Admiralty Island cuscus 
Afghan Pika 
African buffalo 
African bush elephant 
African forest buffalo 
African forest elephant 
African golden cat 
African Leopard 
African savanna hare 
African wild dog 
African wildcat 
Agile mangabey 
Agile wallaby 
Aldabra flying fox 
Alpaca 
Alpine Ibex 
Alpine Marmot 
Altai vole 
Amazon river dolphin 
Amazonian manatee