Anatomy
“Knowledge of the physiology of creatures in general. This is an umbrella skill that encompasses a vast suite of sub-skills for particular types of creatures. This parent skill represents generalized knowledge that applies to all creatures in the world.
The Anatomy skill is a parent skill for a number of creature-specific Anatomy skills, such as Canine Anatomy and Fungoid Anatomy.
Examining corpses (with an Autopsy Kit in the inventory) will raise the relevant creature-specific anatomy skill. As these skills improve more details will be revealed about the creature, such as their Abilities and their particular weaknesses (eg. Weak to Poison, Resistant to Slash damage).
When your skills are high enough you will see this additional information displayed in the Armor/Health/Rage window.