Mandibular sawing in a snail-eating snake

被引：8
|
作者：
Kojima, Yosuke [1 ]
Fukuyama, Ibuki [2 ]
Kurita, Takaki [3 ]
Bin Hossman, Mohamad Yazid [4 ]
Nishikawa, Kanto [2 ,5 ]
机构：
[1] Toho Univ, Dept Biol, Funabashi, Chiba 2748510, Japan
[2] Kyoto Univ, Grad Sch Human & Environm Studies, Sakyo Ku, Kyoto 6068501, Japan
[3] Chiba Biodivers Ctr, Chuo Ku, Aoba Cho 955-2, Chiba 2608682, Japan
[4] Sarawak Forest Dept, Res Dev & Innovat Div, Sarawak 93250, Malaysia
[5] Kyoto Univ, Grad Sch Global Environm Studies, Sakyo Ku, Kyoto 6068501, Japan
来源：
SCIENTIFIC REPORTS | 2020年 / 10卷 / 01期
基金：
日本学术振兴会;
关键词：
FEEDING-BEHAVIOR; PREY; SQUAMATA;
D O I：
10.1038/s41598-020-69436-7
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The jaws of vertebrates display a striking diversity in form and function, but they typically open and close like a trapdoor rather than sliding like a saw. Here, we report unique feeding behaviour in the blunt-headed snail-eating snake, Aplopeltura boa (family Pareidae), where the snake cuts off and circumvents the indigestible part (the operculum) of its prey in the mouth using long sliding excursions of one side of the mandible, while the upper jaws and the mandible on the other side maintain a stable grasp on the prey. This behaviour, which we call 'mandibular sawing', is made possible by extraordinarily independent movements of the jaw elements and is a surprising departure from usual feeding behaviour in vertebrates.
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页数：5
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