Figure 3
From: Comparative histology of muscle in free ranging cetaceans: shallow versus deep diving species

The occupied area of the interstitial adipose tissue varied greatly between species with different diving behaviours.
Osmioum postfixation technique. Adipocytes were visualised as cells with a variable staining pattern ranging from olive green to black. (A) Adult female of bottlenose dolphin (Tursiops truncatus). Adipocytes were displayed within the interstitial connective tissue (arrowheads). 200× magnification. (B) High amount of adipocytes were displayed within the perimysium. Juvenile male of short-finned pilot whale (Globicephala macrorhynchus). 200× magnification.