Can Sea Turtles Breathe Underwater?

Sea turtles breathe air with lungs. They must reach the surface to breathe. Living in the ocean does not give them fish-like gills. NOAA describes this need in its loggerhead profile.

A dive is a breath hold

A turtle can swim, feed or rest below the surface between breaths. There is no single dive duration that fits every species and situation. An animal resting quietly and one escaping danger have different demands.

Researchers studying six captive green turtles found that heart rate changed with exercise and breathing. Their resting dives lasted longer on average than active dives in that experiment. Those observations help explain physiology; they are not a universal stopwatch for wild turtles. Read the study.

Why fishing gear can be dangerous

An air-breathing animal can drown if it cannot surface. Accidental capture in fishing gear is called bycatch. NOAA identifies fishing interactions as a major threat to sea turtles and works on ways to reduce them. NOAA sea turtle conservation.

Do not test an animal's breath-holding ability or attempt to free a tangled turtle yourself. Ask an adult to use the appropriate wildlife response contact and follow trained responders' instructions.

Think like a researcher

When you read a breath-holding record, ask which species was observed, whether it was resting, and how the measurement was made. Compare examples in our breath-holding guide.

The oxygen and energy rules in our lifecycle game are invented play mechanics, not a model for deciding how long a real turtle can safely remain underwater.