形态锐利度测量值与蝰蛇毒牙的穿刺性能有何关系？
How do morphological sharpness measures relate to puncture performance in viperid snake fangs?
机构信息
1 Department of Animal Biology, University of Illinois at Urbana-Champaign , 515 Morrill Hall, 505 South Goodwin Avenue, Urbana, IL 61801 , USA.
2 George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology , 801 Ferst Drive, Atlanta, GA 30332 , USA.
出版信息
Biol Lett. 2019 Apr 26;15(4):20180905. doi: 10.1098/rsbl.2018.0905.
It makes intuitive sense that you need a sharp tool to puncture through a tough material. The typical approach to evaluating sharpness in biological puncturing tools is to treat morphological measurements as a proxy for puncture ability. However, there are multiple approaches to measuring sharpness, and the relative influence of morphology on function remains unclear. Our goal is to determine what aspects of tip morphology have the greatest impact on puncture ability, using ( a) viper fangs and ( b) engineered punches to isolate the effects of different sharpness measures. Our results indicate that tip included angle is the strongest predictor of puncture performance in both viper fangs and engineered punches. For puncture tools with small included angles, sharpness index (based on the radius of curvature) also affects puncture ability. Finally, we found that punches serve as good predictors of fang performance at small angles and sharpness index values.
用锋利的工具刺穿坚硬的材料是符合直观感受的。评估生物穿刺工具锋利度的典型方法是将形态测量作为穿刺能力的替代指标。然而，有多种测量锋利度的方法，形态对功能的相对影响尚不清楚。我们的目标是使用（a）毒蛇的毒牙和（b）工程冲孔器来确定尖端形态的哪些方面对穿刺能力有最大的影响，从而确定哪些方面对穿刺能力有最大的影响。我们的结果表明，在毒蛇的毒牙和工程冲孔器中，尖端夹角是穿刺性能的最强预测因子。对于小夹角的穿刺工具，锐度指数（基于曲率半径）也会影响穿刺能力。最后，我们发现，在小角度和锐度指数值下，冲孔器可以很好地预测毒牙的性能。
Zotero 插件