- 'Akiapola'au (Whalebite)
- 'Akikiki (Whalebite)
- 'Akikiki (Whalebite)/Version 1
- 'I'iwi (Whalebite)
- 'I'iwi (Whalebite)/Version 1
- 'I'iwi (Whalebite)/Version 2
- 'Ohi'a Lehua (Whalebite)
- 'Ohi'a Lehua (Whalebite)/Version 1
- 'Puaiohi (Whalebite)
- AQUAstore Cash Register (PaJaS30)
- AQUAstore Gifts (PaJaS30)
- ARK Electrophorus (TheriDK)
- ARK Megalodon (TheriDK)
- ARK Trilobite (Zoo Tycoon 2 Thailand)
- ATM (Feral Designs)
- ATMs (Zeta-Designs)
- A Pack of Peculiar Plesiosaurs (Acinonyx Jubatus)
- A Strange World (Terrena Laxamentum)
- A Tiny Test Map (Mjmannella)
- Aardvark (Aurora Designs)
- Aardvark (Blue Fang)
- Aardvark (Royboy407)
- Aardwolf (Hispa Designs)
- Aardwolf (Penguinman)
- Aardwolf (ZTABC Team)
- Abanda Cave Crocodile (Acinonyx Jubatus)
- Abbot's Duiker (DRAGON-unit911)
- Abdim's Stork (LilyValley)
- Abelisaurus (Gorgonopsid Master)
- Abelisaurus comahuensis
- Aberdeen Angus Cattle (Ulquiorra)
- Abert's Squirrel (MiBound)
- Abies alba
- Abies balsamea
- Abies fraseri
- Abies lasiocarpa
- Abies mariesii
- Abies nebrodensis
- Abies sibirica
- Abies sp.
- Abies veitchii
- Abramis brama
- Abudefduf saxatilis
- Abyss (Harlequinz eg0 & Planktonraptor)
- Abyssinian Banana (NanoLancensis)
- Abyssinian Fescue (Aurora Designs)
- Acacia aneura
- Acacia koa
- Acacia sp.
- Acacias (Thom)
- Acai Palm (Hispa Designs)
- Acanthaster planci
- Acanthemblemaria aspera
- Acanthocybium solandri
- Acanthodactylus mechriguensis
- Acanthodes (Imago)
- Acanthodes gracilis
- Acanthogobius flavimanus
- Acanthopagrus schlegelii
- Acanthophis praelongus
- Acanthostega (Hispa Designs)
- Acanthostega gunnari
- Acanthurus achilles
- Acanthurus leucosternon
- Acanthurus lineatus
- Acanthurus sohal
- Acanthurus triostegus
- Accipiter gentilis
- Accipiter rufitorques
- Acer negundo
- Acer palmatum
- Acer pseudoplatanus
- Acer saccharum
- Aceratherium (Jose Antonio)
- Aceratherium acutum
- Acerodon jubatus
- Achelousaurus (Kingcobrasaurus)
- Achelousaurus horneri
- Acheroraptor (Andrew12 & Luca9108)
- Acheroraptor temertyorum
- Achilles Tang (DutchDesigns)
- Achillesaurus (Austroraptor)
- Achillesaurus manazzonei
- Aciedactylus (Alvin Abreu)
- Acinonyx Jubatus
- Acinonyx jubatus
- Acinonyx jubatus venaticus
- Acinonyx pardinensis
- Acipenser baerii
- Acipenser baerii baicalensis
- Acipenser brevirostrum
- Acipenser fulvescens
- Acipenser ruthenus
- Acipenser sinensis
- Acipenser sturio
- Acipenser transmontanus
- Aciphylla aurea
- Acoelorrhaphe wrightii
- Acorus calamus
- Acrantophis dumerili
- Acrocanthosaurus (Bill)
- Acrocanthosaurus (Braq)
- Acrocanthosaurus (Dinonerd1000 & Mjmannella)
- Acrocanthosaurus (Indra Budhi)
- Acrocanthosaurus (Royboy407)
- Acrocanthosaurus (Ultamateterex2)
- Acrocanthosaurus atokensis
- Acrocephalus griseldis
- Acrophyseter (Buffzoo, Jorge Gabriel & NanoLancensis)
- Acrophyseter deinodon
- Acropora cervicornis
- Acropora palmata
- Acropora sp.
- Acrostichum speciosum
- Acryl Tank Walls (Zeta-Designs)
- Acryllium vulturinum
- Actias luna
- Actinia equina
- Actiniaria sp.
- Adamussium colbecki
- Adansonia digitata
- Adansonia grandidieri
- Adansonia gregorii
- Adansonia madagascariensis
- Adasaurus (VGnome)
- Adasaurus mongoliensis
- Addax (Aurora Designs)
- Addax (Blue Fang)
- Addax nasomaculatus
- Additional Recyclable Food N Snacks Hack (MF217)
- Addra Gazelle (Robert, Royboy407 & Tom)
- Addra Gazelle (Zoo Admin Design Team)
- Adelie Penguin (Demon Hunter)
- Adelpha eulalia
- Adlapsusaurus (Alvin Abreu)
- Adoption Plaque (Okeanos)
- Adélie Penguin (Electric Eel & Penguinman)
- Adélie Penguin (JimmyzHoopz)
- Aechmea aquilega
- Aegagropila linnaei
- Aegirocassis (Whalebite)
- Aegirocassis benmoulae
- Aegirosaurus (Acinonyx Jubatus)
- Aegirosaurus leptospondylus
- Aegypius monachus
- Aegyptosaurus (oO-VND-Oo)
- Aegyptosaurus baharijensis
- Aenocyon dirus
- Aeoliscus strigatus
- Aepycamelus (ECR Designing Team)
- Aepycamelus elrodi
- Aepyceros melampus
- Aepyceros melampus petersi
- Aepyornis maximus
- Aerator (Team Nerina)
- Aethopyga duyvenbodei
- Aetiocetus (Braq, Dinosaur & Leaf)
- Aetiocetus (Braq & Dinosaur)
- Aetiocetus cotylalveus
- Aetobatus narinari
- Aetobatus poeyi
- Aetobatus poeyi (Imago)
- Africa Pack (Robert)
- African Abnormalities (Kingcobrasaurus)
- African Adventure (Blue Fang)
- African Agriotherium (Tamara Henson)
- African Black-Footed Penguin (Martin1990)
- African Black Eagle (Bahia46)
- African Black Eagle (Hispa Designs)
- African Black Trapdoor Spider (Terrena Laxamentum)
- African Buffalo (Aurora Designs)
- African Buffalo (Blue Fang)
- African Buffalo (DutchDesigns)
- African Bush Elephant (Aurora Designs)
- African Bush Elephant (Becuffin & Iba5000)
- African Carving (slice)
- African Civet (Kangorilaphant)
- African Civet (Otter Lord)
- African Civet (ZTABC Team)
- African Civet and Giant Eland (Otter Lord)
- African Crowned Crane (Kangorilaphant)
- African Crowned Crane (Mika & Steenbok28)
- African Desert Elephant (Elephantium Creators Realm)
- African Desert Elephant (Tamara Henson)
- African Elephant (Blue Fang)
- African Elephant (Tom Van Ryn)
- African Fern Pine (Aurora Designs)
- African Fish Eagle (Jules)
- African Fish Eagle (Kangorilaphant)
- African Fish Eagle (LilyValley)
- African Forest Elephant (Colonel Swampert & Mjmannella)
- African Forest Elephant (DRAGON-unit911)
- African Forest Elephant (Elephantium Creators Realm)
- African Forest Elephant (HENDRIX)
- African Forest Elephant (Mjmannella)
- African Forest Elephant (Tatanka Yotanka)
- African Forest Elephant (Tom Van Ryn)
- African Forest Elephant (Tom Van Ryn)/Version 2
- African Foxtail Grass (Aurora Designs)
- African Golden Cat (Bigcatkeeper)
- African Golden Cat (Dinosaur)
- African Golden Cat (DutchDesigns)
- African Goose (Goldenfire)
- African Great Egret (Iba5000)
- African Grey Parrot (Dacentru & Maks)
- African Iris (Kangorilaphant)
- African Leopard (Aurora Designs)
- African Leopard (Elephantium Creators Realm)
- African Leopard (Mad Head)
- African Leopard (Mad Head)/Version 1
- African Leopard (Maxforever)
- African Leopard (Mayer)
- African Leopard (Robert, Royboy407 & Tom)
- African Leopard (SilesianTomcat)
- African Leopard (Tom Van Ryn)
- African Leopard (Tom Van Ryn)/Version 1
- African Leopard (VGnome)
- African Lion (Ultamateterex2)
- African Lion (Ultamateterex2)/Version 1
- African Lion (Ultamateterex2)/Version 2
- African Manatee (Terrena Laxamentum)
- African Masks (Kbcoon)
- African Mystics (Robert, Royboy407 & Tom)
- African Olive Pigeon (RGDS)
- African Owl Pigeon (Tamara Henson)
- African Pack (Mad Head)
- African Palm Civet (ZTABC Team)
- African Pencil Cedar (NanoLancensis)
- African Penguin (DutchDesigns)
- African Penguin (Lights)
- African Posters (Kbcoon)
- African Pygmy Goose (JimmyzHoopz)
- African Rock Python (Ron)
- African Rocks (Robert)
- African Sacred Ibis (Jules)
- African Safari Pack (Koala Komander)
- African Savannah Pack (Kangorilaphant)
- African Shelter (ZTABC Team)
- African Sivatherium (Lazardi)
- African Sivatherium (Lazardi)/Version 1
- African Sivatherium (Lgcfm & Ulquiorra)
- African Spoonbill (Kangorilaphant)
- African Spoonbill (Mstickmanp)
- African Spoonbill (Ron)
- African Spurred Tortoise (Aurora Designs)
- African Spurred Tortoise (Blue Fang)
- African Striped Weasel (Tamara Henson)
- African Striped Weasel (Tamara Henson)/Version 1
- African Teak (Aurora Designs)
- African Themed Bulletin Board (Dwarfbomb)
- African Themed Clipboard (Dwarfbomb)
- African Treasures (DutchDesigns)
- African Wild Ass (Kangorilaphant)
- African Wild Cat (Kingcobrasaurus)
- African Wild Dog (Blue Fang)
- African Wild Dog (Burnt Gecko)
- African Wild Dog (Dedennedillo)
- African Wild Dog (Sim'Z)
- African Wild Dog Signs (Kbcoon)
- African Wyvern (Simba)
- AfroVentures Premium (Elephantium Creators Realm)
- Afrocarpus gracilior
- Afropavo congensis
- Afroraptor (Kingcobrasaurus)
- Afrotis afra
- After Man Exposition Plaque (Panrex)
- After Man Music Box (Panrex)
- After Man Pack (Panrex)
- After Man Pack (Tamara Henson)
- Afterlife's Hell Path (Panrex)
- Agalychnis callidryas
- Agathaumas (Tamara Henson)
- Agathaumas sylvestris
- Agathis australis
- Agave Americana Marginata (FelipeepileF)
- Agave americana
- Agave americana var. marginata
- Agave angustifolia marginata
- Agave bovicornuta
- Agave parryi
- Agave salmiana
- Agave sisalana
- Agelaius phoeniceus
- Agelaius tricolor
- Agile Wallaby (DutchDesigns)
- Agkistrodon contortrix
- Agkistrodon piscivorus
- Aglaomorpha rigidula
- Aglaonema simplex
- Aglaophyton (Hispa Designs)
- Aglaophyton major
- Agriotherium sivalensis
- Agrostis gigantea
- Agustinia (Philly)
- Agustinia ligabuei
- Ailuropoda melanoleuca
- Ailuropoda microta
- Ailurops ursinus
- Ailurus fulgens
- Air Balloon (slice)
- Air Conditioner (Dycki1231)
- Airboat (Hispa Designs)
- Aix galericulata
- Aix sponsa
- Akebono Elephant (Demon Hunter)
- Akhal-Teke (Tamara Henson)
- Akohekohe (Whalebite)
- Akohekohe (Whalebite)/Version 1
- Akohekohe (Whalebite)/Version 2
- Al-Mi'raj (Tamara Henson)
- Alabama Red-bellied Cooter (MiBound)
- Alagoas Curassow (Whalebite)
- Alamosaurus (Zoo Tycoon 2 Thailand)
- Alamosaurus sanjuanensis
- Alanqa (Zoo Tycoon 2 Thailand)
- Alanqa saharica
- Alaska Pollock (Dycki1231)
- Alaskan Pachyrhinosaurus (NanoLancensis)
- Albert's Lyrebird (Tamara Henson)
- Albertosaurus (16529950)
- Albertosaurus (BRR)
- Albertosaurus (Marvels 3volved)
- Albertosaurus (Philly)
- Albertosaurus (Royboy407)
- Albertosaurus (RyuKami)
- Albertosaurus (RyuKami)/Version 1
- Albertosaurus (RyuKami)/Version 2
- Albertosaurus (RyuKami)/Version 3
- Albertosaurus (Ultamateterex2)
- Albertosaurus sarcophagus
- Albizia saman
- Albula vulpes
- Alca torda
- Alcedo atthis
- Alcedo hercules
- Alcedo meninting
- Alcedo quadribrachys
- Alcedo semitorquata
- Alcelaphus buselaphus
- Alcelaphus buselaphus cokii
- Alcelaphus buselaphus major
- Alcelaphus buselaphus swaynei
- Alcelaphus buselaphus tora
- Alcelaphus caama
- Alcelaphus lichtensteinii