Tiger seal

Polar Sea Lions, are first seen in "The Boy in the Iceberg" when Aang was released from the iceberg; the beam of light created caused the creatures to howl in unison. Polar Sea Lions are a food source for the Southern Water Tribe and are the main ingredient in Blubbered Seal Jerky.

Anatomy
Polar Sea Lions have facial features that are predominantly feline, with cat-like ears, snout and whiskers. The rest of the animal resembles a seal, with flippers, a sleek body and a tail. Adult Polar Sea Lions appear to be approximately five to six feet in length and are gray with a pattern of lateral black stripes along their bodies and heads. Pups, on the other hand, have the same markings as their parents, but appear to be only about two to three feet in length.

Connection
Polar Sea Lions resemble both tigers and seals, aesthetically. Seals have large flippers as forelimbs and their bodies are streamlined, narrowing into a substantial tail. The creatures are a play on real-life leopard seals.

Behavior
Polar Sea Lions are aquatic creatures native to the South Pole region. The markings enable them to hide their numbers while in the water when hunting for fish. These animals prefer to lay together in large masses and howl loudly when disturbed. Their main prey are Otter-Penguins.

Trivia

 * Polar Sea Lions are also referred to by many as Tiger Seals.
 * In "Avatar Extras, they were mistakenly referred to as Zebra Seals, a possible relative.