Maybe you never heard about Tama-chan, especially if you don't live in Japan.
This is a seal who was spotted recently along the Katabiragawa river, near Yokohama.
Its nickname, Tama-chan, was given when it was first seen on Tama River, about 6 months ago.

Tama-chan will be registered as Yokohama resident next week, by Nishi Ward in Yokohama. On its resident card, the following information will appear:
Tamao Nishi (aka Tama-chan)
Banks of the Katabiragawa river
Nishi-hiranumacho, Nishi Ward
Yokohama

Sugoi, ne!