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About the Cover
Cover:
The Burmese python (top; photo by Dr Herman Berkhoudt, IBL, Leiden University) was used to study snake-tongue protrusion and flicking. Spatial photogrammetry (bottom, centre), using a collar of mirrors around the python's head, revealed the 3-D kinematics of the tongue and the tongue tip (bottom, left; lateral view of dorso-ventral tongue flexion and tongue tip trajectory during a series of three flicks) and the local curvature along the longitudinal axis of the tongue (bottom, right: colour plot of local curvature changes of the tongue during a single flick series). J. H. de Groot, I. van der Sluijs, P. Ch. Snelderwaard and J. L. van Leeuwen discuss the observations in relation to the sensory function, the intrinsic and extrinsic tongue architecture, and the requirements of stability and fast hydrostatic protrusion and flicking of the tongue (pp. 827-839).
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