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Fig. 3. (A) Lateral movement of T. wilhelma on natural substrate
(Fig. 1A), displaying three
movement phases; (B) Contraction (projected body area) and lateral movement of
T. wilhelma on a glass plate (Fig.
1B), with three distinct movement phases; (C) Contraction
(projected body area) and lateral movement of T. wilhelma on a
plastic plate (Fig. 1C), with
even movement. For average contraction speeds and more details, refer to
text.