Use of opposite frictional forces by animals to increase their attachment reliability during movement

Sticking like sticky tape: tree frogs use friction forces to enhance attachment on overhanging surfaces

(2013) T. Endlein et al.   Journal of the Royal Society Interface

Movement behavior of a spider on a horizontal surface

(2011) ZhouYi Wang et al.   CHINESE SCIENCE BULLETIN

Behavior and dynamics of gecko’s locomotion: The effects of moving directions on a vertical surface

(2011) ZhouYi Wang et al.   CHINESE SCIENCE BULLETIN

Locomotion behavior and dynamics of geckos freely moving on the ceiling

(2010) ZhouYi Wang et al.   CHINESE SCIENCE BULLETIN

Morphology and reaction force of toes of geckos freely moving on ceilings and walls

(2010) ZhouYi Wang et al.   Science China-Technological Sciences

Contact mechanics of pad of grasshopper (Insecta: ORTHOPTERA) by finite element methods

(2009) ZhenDong Dai et al.   CHINESE SCIENCE BULLETIN

Adhesive properties of the arolium of a lantern-fly, Lycorma delicatula (Auchenorrhyncha, Fulgoridae)

(2008) Leonid Frantsevich et al.   JOURNAL OF INSECT PHYSIOLOGY

Adhesion and Friction Force Coupling of Gecko Setal Arrays:  Implications for Structured Adhesive Surfaces†

(2007) Boxin Zhao et al.   LANGMUIR