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Fig. 5. Cyclic swimming in zebrafish larvae. Contours of the specific lateral
displacement (left column) and specific curvature (right column) of the
midlines of swimming larvae. Age post-fertilisation: A,E 2 days; B,F
age 3 days; C,G 5 days: D,H 7 days. The contours are
based on the same sequences as Fig.
2A,C,D,E. The thick, black lines indicate zero lateral
displacement (h0; AD) and zero curvature
(
0; EH), respectively. Broken, black lines indicate
the local extremes in the lateral displacement (hmax;
AD) and curvature (
max; EH). The horizontal
cross sections (red lines) indicate instantaneous body waves (AD) and
curvature waves (EH). For further explanation, see main text and
Fig. 4.