"Adaptations of its blood chemistry, brain, heart, and particularly its shell allow the turtle to survive extreme lactic acid buildup while oxygen-deprived." --WP
Plus, they have rudimentary gills in their anus that allow them to extract small amounts of oxygen from the water - just enough to survive while hibernating. However, if the water they are in freezes solid and the turtle does too, they die.
"Adaptations of its blood chemistry, brain, heart, and particularly its shell allow the turtle to survive extreme lactic acid buildup while oxygen-deprived." --WP
Plus, they have rudimentary gills in their anus that allow them to extract small amounts of oxygen from the water - just enough to survive while hibernating. However, if the water they are in freezes solid and the turtle does too, they die.
"Adaptations of its blood chemistry, brain, heart, and particularly its shell allow the turtle to survive extreme lactic acid buildup while oxygen-deprived." --WP
.