What quest do I need to do to be able to kill experiments? What are the requirements? I've completely forgotten.
I think it's the Creature of Fenkenstrain?
1-19 - Crimson Swifts.
19-53 - Tropical Wagtails.
53-63 - Chinchompas (Normal)
63-99 - Red Chinchompas.
If you want, you can start hunting red chins at like 70+ because it becomes way faster.