Fig. 1From: The research on the formation mechanism of extraordinary oxidative capacity of skeletal muscle in hibernating ground squirrels (Spermophilus dauricus)Capillaries and fibers visualized by alkaline phosphatase staining. Numbers of capillaries (black dots) and fibers (irregular circle) were calculated. Fibers area was obtained by summing each fiber area. a pre-hibernation; b torpor; c interbout-arousal; d posthibernationBack to article page