Just wanted to add this: I accidentally hit enter when I meant to hit shift. In regards to my edit removing a statement talking about the Insectile Template:

The statement that the arms cannot be used to get extra attacks is a misreading: the arms can be used to hold and use manufactured weapons, the statement that this referred to only meant that if the base creature has any natural weapons attached to their already existing arms, the template doesn't give them four extra natural weapons, not that the four arms are totally useless. Although, you do need to take feats to use those extra limbs at their full potential.

Deleted the following from the Western Animation section because Lt. Arex is not depicted as being dangerous in any way.

• Star Trek The Animated Series. Lieutenant Arex, one of the Enterprise's two new alien crew members, is the three armed ship's navigator.