Common Name: Kairuku
Species: Kairuku waitaki
Time: Late Paleogene
Kairuku Waitaki is an amazingly docile and friendly creature, to everything but fish. Honestly, I'm not quite sure how Kairuku manages to stay populated across the islands colder climates, with the many predators stalking these frozen lands.
It is weak, and only one small defensive trait: suspended in Kairuku blubber are small, dense particles that act as a light form of armor.
Adding to Kairuku's problems, a clever survivor discovered that refining Kairuku blubber (concentrating the particles in it) can yield a natural form of the same Polymer utilized in advanced tribes' manufacturing processes. This has caused many tribes to hunt Kairuku extensively, a practice colloquially known as "Kairu Clubbing".
There is no reason to tame Kairuku for combat since they are useless in a fight. Still, Kairuku are regularly tamed for their cuteness and friendly nature, and the fact that their bodies run extremely hot. Just standing near Kairuku can help keep a survivor stay warm through long, harsh nights on the icebergs.