Bellyful is male black bear cub. Named by Martin Kratt, he made his first, and so far only, appearance in the season 4 episode "Spirit Bear."
Background[]
Bellyful is first seen with his mother, Paw Flip, on "Bear Island," an island off the Pacific coast of North America. They are seen licking bugs off the bottom of rocks and eating some berries in a berry bush. Later, Bellyful tries to catch a fish but fails. Martin and Chris try to show him how, but they fail as fail as well. At the end, Martin and Chris play with him and the other cubs.