Can anyone explain to me why Yahoo! Style writers don’t know how to form the possessive of a common noun? Why would anyone think models’s could possibly be correct?
Maybe the writer didn’t know if she was writing about one model (and the possessive model’s) or more than one (and the possessive models’). So she covered both possibilities with models’s.
But how do you explain her ignorance of using single quotation marks within a quote? Maybe she played hooky the day that was taught in seventh grade.
So, if she was writing about two or more models, she should have written: the models’ “‘bones’ weren’t visible…