Teddiursa is a bipedal, ursinePokémon covered in short, orange-brown fur. Its muzzle is a light tan color with a small black nose and black eyes with white irises. There is a slightly paler tan crescent moon marking on its face, and it has round ears. It has three claws on its forepaws as well as two claws and yellow paw pads on its hind paws. Its tail is short, round, and puffy.
Teddiursa is almost always seen licking its forepaws, which are soaked in honey — every Teddiursa has a different flavor on its paws. When it feels nervous, it will lick its paws to calm itself down. The marking on its face can glow when it finds honey. While Teddiursa is able to make its own honey by blending pollen collected by Beedrill with fruits, it is also known to steal honey from Combee nests, which it finds by stealthily following the Combee. Teddiursa lives in mountainous forests, where it will hide food throughout its territory before food becomes scarce in winter.
Teddiursa made its main series debut in UnBEARable. It was a manipulative thief who would pretend to be cute to humans in order to steal their food and blame it on their Pokémon. Ultimately, after a battle with Ash's Chikorita, it evolved into Ursaring and was thus no longer able to use its charm on humans with ease, though it would be able to hunt for food on its own.
Despite its fondness for honey in its Pokédex entries and even dropping Dazzling Honey, Dazzling Honey is not among the list of Teddiursa's preferred foods in Pokémon Legends: Arceus.
Teddiursa appears to be based on a bear cub, such as the cub of an Asian black bear, whose Japanese name (ツキノワグマ tsukinowaguma) literally means "ring-of-the-moon bear". The fact that Teddiursa always licks its paws covered in honey mimics the bears' weakness for it. Teddiursa's appearance also resembles a teddy bear, and possibly the cubs of other honey bear species such as the sun bear or sloth bear. The marking on Teddiursa's face may come from the aforementioned Asian black bear and the crescent moon it is similar to. The connection between a bear and a celestial body may also reference the Ursa Minor and Ursa Major constellations, Teddiursa being the former one.