Black Bear (also Muscular Bear) is the characters of the Template:MB series.
A Himalayan Black Bear, who is Bear's worst enemy and Bear's chief rival for the attentions of the She-Bear. The Black Bear has an arrogant and unsportsmanlike personality, cheating to win against Masha in a tennis game, and laughing at her when she grows gigantic. Bear's biggest fear is if Black bear and she bear marry which is shown in ep. Template:Ep when bear imagines what will happen if he Plays games his whole life.
He likes fishing and pumping muscles. He has been acquainted with Bear and She-Bear since childhood, when Bear's father tried to make a music band from them. Since then, he can play some musical instruments.
Him is not liked by almost all the main characters (except for the She-Bear).
It looks larger than the Bear, with a dark-brown coat and a white spot of sickle-shaped form (or else in the form of the letter V) characteristic of Himalayan bears.