From LSWiki
The concept of "harm skills" refers to various skills, generally knowledge skills, that are useful in combat against specific races or even individuals.
For instance, the anatomy skill makes one more knowledgeable about how to inflict injury on most ordinary beings, animal lore is useful against
animals, and so on. With more intelligent, socialized opponents, culturally related skills like law and politics come into play, while unthinking
constructs may be best defeated by approaching the problem in terms of demolition. The help displays for individual races provide information
on the harm skills appropriate to them.
