Figure 3.
(a) Artist’s rendering of C. aceratus, a hemoglobin-free fish living in the Southern Ocean near Antarctica. Used with permission of Regan39. (b) Freshly drawn blood from C. aceratus (right) is milky white while blood from Hb+ N. coriiceps is a familiar shade of red (left). Adapted with permission from Sidell & O’Brien42.
