4. In the cowboy lexicon there was no term for "sunburn," but there were three different terms for muleskinning and how a mules legs and hooves might might hover over their bodies when they were dead.

Ans: In the cowboy lexicon there was no term for "sunburn," but there were three different terms for muleskinning and how a mule's legs and hooves might might hover over its body.

1) the mule possesses its hooves and legs, so it gets plural treatment

2) because we are talking about a singular mule here, then the pronound that refers back to it needs to be singular as well. Also, then the noun "bodies" should be changed to "body"