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Fig. 4. Swimming speed, depth and swaying acceleration during typical shallow dives
made by Individual 4 in (A) weighted and (B) unweighted conditions, and deep
dives made in (C) weighted and (D) unweighted conditions on July 5, 2005 (A,C)
and July 6, 2005 (B,D). Vertical broken lines separate dives into three
phases: descent, bottom and ascent. Swimming behavior during descent and
ascent is categorized as prolonged glide (white horizontal bar),
stroke-and-glide swimming (grey horizontal bar) and continuous strokes (black
horizontal bar) (see `Results' for categorization).