Endangered Species
Endangered Species is a members achievement in the Area Tasks category (Easy Fremennik), worth 5 RuneScore points. It has no requirements.
In game: “Kill an adult black unicorn.”
5 RuneScoreArea TasksEasy FremennikMembers
Updated . From the RuneScape Wiki's achievement data (CC BY-NC-SA 3.0), checked 2026-10-09. Wiki page.
Requirements
None: any account can do this one as soon as it reaches the right place.