Figure 4 in Photogrammetry of blue whales with an unmanned hexacopter

Figure 4. Photogrammetry measurements of body length from rostrum tip to tail notch, and width at 40% of the body length from the rostrum, for 22 individual blue whales. Labels indicate a notably robust (a) and a lean (b) whale, that were outliers from the general trend (see Fig. 3 for photographs of these same whales). Closed circles indicate two presumed adult females, which were accompanied by the two smallest whales that appeared to be dependent calves.