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Fig. 4. Duty factor (A,C,E) and stride frequency (B,D,F) versus stride number for Anolis lineatopus (A,B), A. grahami (C,D) and A. valencienni (E,F). The circles, squares and triangles represent turning angles of 0°, 30° and 90°, respectively. Values are means ± S.E.M. Some error bars are not visible because they are smaller than the size of the symbols.