How long can a sea turtle hold its breath? And why do they drown?
As sea turtles are air breathing reptiles, they need to surface to breathe. Sea turtles can hold their breath for several hours, depending upon the level of activity. A resting/sleeping turtle can remain underwater for over 4-7 hours. Recent research has shown that some turtles can even hibernate in the sea for several months! However, a stressed turtle, for instance entangled in fishing gear, quickly uses up oxygen stored within its body and may drown within minutes through panic.