Animals That Start With A

Orycteropus afer

The aardvark is a nocturnal, burrowing mammal found across sub-Saharan Africa, best known for its long snout and powerful digging claws used to raid termite mounds.

Loxodonta africana

The African elephant is the largest living land animal, roaming savannas, forests, and semi-arid regions across sub-Saharan Africa in tightly-bonded matriarchal herds. This entry refers specifically to the African bush elephant, the larger of two African species recognized by the IUCN since 2021 — the other, the African forest elephant, is smaller, has straighter tusks, and lives in the dense rainforests of Central and West Africa. Elephant populations were decimated by ivory poaching through the 20th century, and though international trade bans and anti-poaching efforts have slowed the decline in many regions, habitat loss and human-wildlife conflict continue to threaten the species today.

Lithobates catesbeianus

The American bullfrog is the largest true frog native to North America, named for its deep, resonant call that resembles a bull's bellow. Highly adaptable and voracious, it will eat almost any animal small enough to fit in its mouth, from insects to other frogs, and has become one of the world's most widely introduced invasive amphibians outside its native range.

Panthera pardus orientalis

The Amur leopard is the rarest big cat in the world, a leopard subspecies adapted to the cold, snowy forests of the Russian Far East and northeastern China. Decades of poaching and habitat loss reduced the wild population to a critical low, though recent conservation efforts have helped numbers slowly recover from the brink.

Euphausia superba

Antarctic krill is a small, shrimp-like crustacean that forms the foundation of the entire Antarctic food web, supporting whales, seals, penguins, and countless fish species. Despite its tiny individual size, its total biomass is estimated to be one of the largest of any animal species on Earth, gathering in massive swarms that can stretch for kilometers and be seen from space.

Ambystoma mexicanum

The axolotl is a remarkable salamander from a single lake system in Mexico that never fully undergoes metamorphosis, instead retaining its larval, gilled form and living its entire life underwater. This permanent juvenile state, called neoteny, along with its extraordinary ability to regrow lost limbs, organs, and even parts of its brain, has made it one of the most studied animals in modern regenerative biology research.