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Text
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URL Address
<a href="http://doi.org/10.1371/journal.pone.0073811" target="_blank" rel="noreferrer noopener">http://doi.org/10.1371/journal.pone.0073811</a>
Pages
e73811–e73811
Issue
9
Volume
8
Dublin Core
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Title
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The power of the claw.
Publisher
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PloS one
Date
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2013
1905-07
Subject
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Animals; Biomechanical Phenomena; Feeding Behavior; *Hoof and Claw; *Mechanical Phenomena; Femur/injuries; Predatory Behavior; Ruminants; Tigers
Creator
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Rothschild Bruce M; Bryant Bill; Hubbard Christopher; Tuxhorn Kent; Kilgore Ginny Penn; Martin Larry; Naples Virginia
Description
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Scratches on bones have routinely been attributed to tooth marks (a predominantly untested speculation), ignoring the effects of claws, perhaps because of the general assumption that claws are too soft to damage bone. However, some pathologies appears to be more compatible with claw rather than tooth impacts. Therefore, it is critical to determine if the claws of any animal are capable of scratching into the surface of any bone–a test and proof of concept. A tiger enrichment program was used to document actual bone damage unequivocally caused by claws, by assuring that the tiger had access to bones only by using its paws (claws). The spectrum of mechanisms causing bone damage was expanded by evidentiary analysis of claw-induced pathology. While static studies suggested that nails/claws could not disrupt bone, specific tiger enrichment activities documented that bones were susceptible to damage from the kinetic energy effect of the striking claw. This documents an expanded differential consideration for scratch marks on bone and evidences the power of the claw.
Identifier
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<a href="http://doi.org/10.1371/journal.pone.0073811" target="_blank" rel="noreferrer noopener">10.1371/journal.pone.0073811</a>
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Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
*Hoof and Claw
*Mechanical Phenomena
2013
Animals
Biomechanical Phenomena
Bryant Bill
Feeding Behavior
Femur/injuries
Hubbard Christopher
Kilgore Ginny Penn
Martin Larry
Naples Virginia
PloS one
Predatory Behavior
Rothschild Bruce M
Ruminants
Tigers
Tuxhorn Kent