Biology is one of the few Skill Trees in the Monster Hunter series that has yet to appear in more than one game. This Skill Tree first appeared in Monster Hunter 3 Ultimate.
Biology has appeared in the following games:
|Skill Tree||Skill Name||Points||Skill Description|
| Bio Master|
|+10||Increases Dung Bomb efficacy and Combination success rate, negates Slimeblight, and prevents Stench.|
MH3U Equipment with Biology