The trunk replaces the longer mandible as the main feeding organ in elephant evolution

doi:10.7554/eLife.90908

IVPP-IR

	The trunk replaces the longer mandible as the main feeding organ in elephant evolution
	Li, Chunxiao 1,2; Deng, Tao1,2 ; Wang, Yang 3; Sun, Fajun 4; Wolff, Burt 3; Jiangzuo, Qigao 2; Ma, Jiao 2; Xing, Luda 1,2; Fu, Jiao 1,2; Zhang, Ji 5,6; Wang, Shiqi2
	2024-06-20
发表期刊	ELIFE
ISSN	2050-084X
卷号	12 页码:22
通讯作者	Deng, Tao([email protected]) ; Zhang, Ji([email protected]) ; Wang, Shiqi([email protected])
摘要	The long-trunked elephantids underwent a significant evolutionary stage characterized by an exceptionally elongated mandible. The initial elongation and subsequent regression of the long mandible, along with its co-evolution with the trunk, present an intriguing issue that remains incompletely understood. Through comparative functional and eco-morphological investigations, as well as feeding preference analysis, we reconstructed the feeding behavior of major groups of longirostrine elephantiforms. In the Platybelodon clade, the rapid evolutionary changes observed in the narial region, strongly correlated with mandible and tusk characteristics, suggest a crucial evolutionary transition where feeding function shifted from the mandible to the trunk, allowing proboscideans to expand their niches to more open regions. This functional shift further resulted in elephantids relying solely on their trunks for feeding. Our research provides insights into how unique environmental pressures shape the extreme evolution of organs, particularly in large mammals that developed various peculiar adaptations during the late Cenozoic global cooling trends.
关键词	Miocene elephant trunk mandible stable isotope finite element analysis None
DOI	10.7554/eLife.90908
关键词[WOS]	CARBON-ISOTOPE FRACTIONATION ; MIOCENE ; ARIDIFICATION ; PLATYBELODON ; BIOAPATITE ; MAMMALIA ; ECOLOGY ; CLIMATE ; RECORD ; UPLIFT
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[2023YFF0804501] ; National Key Research and Development Program of China[52178141] ; National Key Research and Development Program of China[41625005] ; National Natural Science Foundation of China[DMR-1157490] ; National Science Foundation ; State of Florida
项目资助者	National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Science Foundation ; State of Florida
WOS研究方向	Life Sciences & Biomedicine - Other Topics
WOS类目	Biology
WOS记录号	WOS:001252177300001
出版者	eLIFE SCIENCES PUBL LTD
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/23784
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Deng, Tao; Zhang, Ji; Wang, Shiqi
作者单位	1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Human Origins Chinese Acad Sci, Key Lab Vertebrate Evolut, Beijing, Peoples R China 3.Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL USA 4.Univ Maryland, Environm Sci & Technol, College Pk, MD USA 5.Huazhong Univ Sci & Technol, Sch Civil & Hydraul Engn, Wuhan, Peoples R China 6.Natl Ctr Technol Innovat Digital Construct, Wuhan, Peoples R China
推荐引用方式 GB/T 7714	Li, Chunxiao,Deng, Tao,Wang, Yang,et al. The trunk replaces the longer mandible as the main feeding organ in elephant evolution[J]. ELIFE,2024,12:22.
APA	Li, Chunxiao.,Deng, Tao.,Wang, Yang.,Sun, Fajun.,Wolff, Burt.,...&Wang, Shiqi.(2024).The trunk replaces the longer mandible as the main feeding organ in elephant evolution.ELIFE,12,22.
MLA	Li, Chunxiao,et al."The trunk replaces the longer mandible as the main feeding organ in elephant evolution".ELIFE 12(2024):22.