Figure 4
From: Comparative histology of muscle in free ranging cetaceans: shallow versus deep diving species
At the ultrastructural level, lipids (L) appeared as electrodense droplets within the myofibrils, closely related to the mitochondria (arrowheads), which were bigger and less electrodense in the deep-diving species.
(A) Adult female of blainville’s beaked whale (Mesoplodon densirostris). (B) Adult specimen of Atlantic spotted dolphin (Stenella frontalis). Bar = 1 μm.
