Xiphasia setifer

Yellowish myotis

Animal

Zanzibar leopard

Abyssinian genet

Animal

Abrothrix andinus

Rodent

Acrocanthosaurus

Dinosaur

Adapisoriculidae

Adolfo's catfish

Fish

African chimaera

African grass owl

Birds

African blue tit

Birds

Ahaetulla prasina (Asya Sarmaşık Yılanı)

Snake

Alburnus orontis

Fish

Allen's gallinule

Birds

Ambassis marianus

Amaralia hypsiura

Fish

American bullfrog

Amphibians

Amistad gambusia

Fish

American cheetah

Animal

Amur stickleback

Fish

Anatolian leopard

Animal

Andaman scops owl

Arabian accentor

Arabian wheatear

Birds

Archosauromorpha

Reptile

Areolate grouper

Fish

Argyrops spinifer

Armored catfishes

Fish

Aspidoparia jaya

Ashy-headed goose

Birds

Atlantic wolffish

Fish

Australosphenida

Animal

Baglafecht weaver

Birds

Bamboo woodpecker

Birds

Banded knifefish

Fish

Banded honeyeater

Birds

Ballerus ballerus

Banded guitarfish

Fish

Bandtooth conger

Bar-winged weaver

Birds

Barcheek trevally

Fish

Barrens topminnow

Fish

Barred sand bass

Fish

Bastard sturgeon

Fish

Barred surfperch

Fish

Batrachocephalus

Bathybates ferox

Fish

Belontia signata