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Call us now at to learn more or schedule your free cosmetic dentistry consultation. Since elk were getting harder to find and kill, the broken teeth were likely the result of the wolves consuming more of the elk carcasses, including munching on bones in search of additional nourishment from bone marrow, Van Valkenburgh and her colleagues theorized.

That resulted in more cracked and broken wolf teeth. One thing he has noticed in looking at the wolf skulls is that about half have misaligned teeth. They always deal with it though.

“Yellowstone has Teeth”

Wolves are resilient. He noted that being kicked in the head by prey is one of the leading causes of wolf deaths in Yellowstone. So how does this relate to ancient predators during the Pleistocene, an epoch that stretched from 2. Those animals had shown rates of broken teeth that were two to four times higher than in modern animals. As large plant eaters like giant ground sloths, mammoths and mastodons declined in the Pleistocene, their predators had to crunch more bones to get the nutrition they needed. Why the large herbivores and their predators eventually went extinct has been debated, although human hunters and climate change are two of the main suspects.

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She also examined 64 adult wolf skulls from Isle Royale National Park in Lake Superior and 94 skulls from Scandinavia, collected between and She compared these with the skulls of wolves that died between and , from Alaska, Texas, New Mexico, Idaho and Canada. The pattern was similar for the Isle Royale wolves, which prey primarily on adult moose — with moose numbers pegged at about 55 to 1, wolves had lots of broken and worn teeth.

The teeth of Scandinavian wolves told a different story. The ratio of moose to wolves is nearly to 1 in Scandinavia so Van Valkenburgh found few broken teeth among the wolves.


Van Valkenburgh believes her findings apply beyond gray wolves to other large carnivores — such as lions, tigers and bears — and that looking at the teeth of big predators can help scientists understand if lack of prey is one of their problems. Studying tooth fracture is one way to do so, and can reveal changing levels of food stress in big carnivores. Co-authors of the study were Rolf Peterson and John Vucetich, professors of forest resources and environmental science at Michigan Technological University; and Smith and Daniel Stahler, wildlife biologists with the National Park Service.

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"Yellowstone Has Teeth" book

Edit Profile Logout. Notice: Your email may not yet have been verified. Please check your email, click the link to verify your address, and then submit your comment. If you can't find this email, access your profile editor to re-send the confirmation email. You must have a verified email to submit a comment. Once you have done so, check again. Yellowstone Has Teeth. Marjane Ambler. She and her husband lived in a tiny community near the shores of Yellowstone Lake, deep in the park's interior. The natural beauty was magnificent, but Ambler and her neighbors discovered that Yellowstone "had teeth.