Fig. 2. Lactate concentration in plasma, carcass, auditory capsule (Aud. Caps.), femur, gastrocnemius muscle (Gastroc.), liver and heart in controls, after 2 h anoxia and after exhaustive exercise in leopard frogs at 15°C. Lactate concentrations after anoxia and exercise are significantly higher than controls for all tissues. Values are means ± S.E.M., N=5-6 per treatment for each tissue. Differences between tissues within a treatment are indicated by differing letters (two-way MANOVA, Student's post-hoc t-test)