Aotus lemurinus: Information
Aotus trivirgatus: Information
Apalone spinifera: Information
Ape clarification - that they have no tails.
How to distinguish animals that look quite similar. Rules of thumb and helpful background information.
Aphelocoma ultramarina: Information
Aplacophora: Information
Aplodontia rufa: Information
Aplodontidae: Information
Aplysia californica: Information
Aplysia dactylomela: Information
Apodemus agrarius: Information
Apodemus sylvaticus: Information
Apodidae: Information
Aptenodytes forsteri: Information
Aptenodytes patagonicus: Information
Apteryx australis: Information
Apteryx haastii: Information
Apteryx owenii: Information
Apus melba: Information