F/9.0, 1/320, ISO 160.
Red-Eared Slider Turtles
What do turtles use to communicate?
Interesting Fact: During brumation, T. s. elegans can survive anaerobically for weeks, producing ATP from glycolysis. The turtle’s metabolic rate drops dramatically, with heart rate and cardiac output dropping by 80% to minimise energy requirements. The lactic acid produced is buffered by minerals in the shell, preventing acidosis. Red-eared sliders kept captive indoors should not brumate. ( https://en.wikipedia.org/wiki/Red-eared_slider )