Swimming speed and energy loss of Anomalocaris. Group of
data point with bracketed number 3 expresses the one of Anomalocaris
with 3 cm lobe width, for example. Corresponding 3D structure of
model Anomalocaris is drawn on the data points. When lobe width
grows from 3 cm to 4 cm, 5 cm, etc. swimming speed increases. Dashed
line expresses proportional line of constant v/E. The data with the
largest v/E is denoted with asterisk.