Turk conducted laboratory experiments which pierced holes in fresh bear bones in the manner of carnivore punctures, and in every case, the bones split. Yet in the Divje Babe instance, the bone did not break, a fact not matching expectations of carnivore action, as Turk's results showed. Turk wrote, in his book and in his article in MIT's "Origins of Music" anthology, the bone shows no "counter-bites" that one would normally expect on the other side of the bone matching the immense pressure necessary for a bite to make the center holes.