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Hypercarnivorous teeth and healed injuries to Canis chihliensis from Early Pleistocene Nihewan beds, China, support social hunting for ancestral wolves

文献类型：期刊论文

作者Tong, Haowen2,3,4; Chen, Xi5; Zhang, Bei2,3,4; Rothschild, Bruce6; White, Stuart1; Balisi, Mairin7; Wang, Xiaoming2,7
刊名PEERJ
出版日期2020-09-08
卷号8页码:22
ISSN号2167-8359
关键词Canis chihliensis Dental injury Limb fracture Bone cracking Pack hunting Early Pleistocene Nihewan Basin China Bone cracking Pack hunting
DOI10.7717/peerj.9858
通讯作者Tong, Haowen(haowen@ivpp.ac.cn) ; Wang, Xiaoming(xwang@nhm.org)
英文摘要Collaborative hunting by complex social groups is a hallmark of large dogs (Mammalia: Carnivora: Canidae), whose teeth also tend to be hypercarnivorous, specialized toward increased cutting edges for meat consumption and robust p4-m1 complex for cracking bone. The deep history of canid pack hunting is, however, obscure because behavioral evidence is rarely preserved in fossils. Dated to the Early Pleistocene (>1.2 Ma), Canis chihliensis from the Nihewan Basin of northern China is one of the earliest canines to feature a large body size and hypercarnivorous dentition. We present the first known record of dental infection in C. chihliensis, likely inflicted by processing hard food, such as bone. Another individual also suffered a displaced fracture of its tibia and, despite such an incapacitating injury, survived the trauma to heal. The long period required for healing the compound fracture is consistent with social hunting and family care (food-sharing) although alternative explanations exist. Comparison with abundant paleopathological records of the putatively pack-hunting Late Pleistocene dire wolf, Canis dirus, at the Rancho La Brea asphalt seeps in southern California, U.S.A., suggests similarity in feeding behavior and sociality between Chinese and American Canis across space and time. Pack hunting in Canis may be traced back to the Early Pleistocene, well before the appearance of modern wolves, but additional evidence is needed for confirmation.
WOS关键词POSTCRANIAL BONES ; FEEDING-BEHAVIOR ; WILD DOGS ; BASIN ; EVOLUTION ; MAMMALIA ; SHANSHENMIAOZUI ; CARNIVORA ; AFRICAN ; DIRUS
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41572003] ; Special Basic Research Project of MST of China[2014FY110300]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者PEERJ INC
WOS记录号WOS:000566881800013
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Special Basic Research Project of MST of China
源URL[http://119.78.100.205/handle/311034/18039]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Tong, Haowen; Wang, Xiaoming
作者单位1.Univ Calif Los Angeles, Sch Dent, Los Angeles, CA 90024 USA
2.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China
3.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Nanjing Normal Univ, Nanjing, Jiangsu, Peoples R China
6.Carnegie Museum Nat Hist, Dept Vertebrate Paleontol, Pittsburgh, PA USA
7.Nat Hist Museum Los Angeles Cty, Los Angeles, CA 90007 USA
推荐引用方式
GB/T 7714		 Tong, Haowen,Chen, Xi,Zhang, Bei,et al. Hypercarnivorous teeth and healed injuries to Canis chihliensis from Early Pleistocene Nihewan beds, China, support social hunting for ancestral wolves[J]. PEERJ,2020,8:22.
APA Tong, Haowen.,Chen, Xi.,Zhang, Bei.,Rothschild, Bruce.,White, Stuart.,...&Wang, Xiaoming.(2020).Hypercarnivorous teeth and healed injuries to Canis chihliensis from Early Pleistocene Nihewan beds, China, support social hunting for ancestral wolves.PEERJ,8,22.
MLA Tong, Haowen,et al."Hypercarnivorous teeth and healed injuries to Canis chihliensis from Early Pleistocene Nihewan beds, China, support social hunting for ancestral wolves".PEERJ 8(2020):22.

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来源：古脊椎动物与古人类研究所

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