Shroombear

Shroombears (タケグマ) are creatures which can be found at the 4th Layer of the Abyss.

Description
Shroombears are small mammals with beady eyes, large noses, stocky bodies, short legs, and a long thin tail. They have a symbiotic relationship with Water-shrooms, which can be found growing on their backs. When the Shroombears grow weak, the Water-shrooms release their stored nutrients into the body of their Shroombear host, restoring it to health.

Shroombear flesh is edible and has been described as being dark in color. Since the main series has only seen Reg's disastrous attempt to prepare the meat, it is unknown whether it can be made palatable or not.

Trivia

 * Their danger classification is left unmentioned, but they seem to lack offensive capability and displayed docility after being shoved inside a container for transport by Reg.
 * Water-shrooms were a key part in Riko's recovery, after being attacked by the Orb Piercer. Nanachi grafted the shrooms onto her wound, so that they would aid in the healing process.