Museums Don't Know How Dogs Walk

Clive Thompson points out a fairly disturbing fact about museums: Many have set up dog skeletons incorrectly, showing them walking with two legs off the ground at one time rather than one. What's more, museums are not alone (though most bothering in my book), "Museums screwed things up a stunning 41% of the time. Taxidermy catalogues got it wrong 43% of the time, toys 50% of the time, and animal-anatomy catalogues were the worst, with 63.6% errors." The obvious question in my mind is if they can't get that right, why would we believe they've gotten any of the stuff they can't actually observe right? Kind of reminds me of this CollegeHumor video: Antiques Roadshow 2550.