Walking of spider on water surface studied from its leg shadows*

Project supported by the National Natural Science Foundation of China (Grant Nos. 51323006 and 51425502) and the Tribology Science Fund of State Key Laboratory of Tribology (Grant No. SKLTKF17B18).

Zheng Yelong1, Lu Hongyu1, Jiang Jile2, Tao Dashuai1, Yin Wei1, Tian Yu1, †
       

(color online) The forces of water spider legs in walking forward. (a) The floating forces of legs L3, R4, and R1. (b) The floating forces of legs L2 and R3. (c) The floating forces of legs L1, L4, and R2. (d) The lateral forces acted on legs L2 and R3.