Do Sea Turtles Cry? The Truth About Turtle 'Tears'
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A sea turtle on a beach can look as though it is crying. The visible fluid has a physiological job: specialized glands near the eyes remove excess salt. It is not evidence that the turtle is sad. NOAA field account of turtle salt glands
Why remove salt?
Living and feeding in the ocean exposes turtles to salt. Their bodies need to keep water and dissolved substances within a useful range. Salt glands concentrate and release salt in fluid near the eyes. Scientists call the broader job of maintaining water and salt balance osmoregulation. Florida Museum: saltwater regulation
A gland that responds
In a laboratory study of green turtles, researchers added salt loads and measured the glands' secretions. The concentration rose after stimulation. This supports the glands' role in salt regulation; it does not mean that a turtle secretes the same amount continuously all day. Nicolson and Lutz, 1989
The familiar word tears can be useful, as long as we remember that this salt secretion has a different explanation from a person crying with emotion. The appearance of fluid alone cannot diagnose an animal's health or feelings.
Watching a nesting turtle
Leave the turtle space and follow local viewing instructions. You do not need to wipe its eyes, touch it or shine a light to inspect it. If an animal seems injured or distressed, contact the local wildlife response organization and follow its advice. NOAA reporting directory
Discover how the same body system helps with drinking seawater, or explore the journey from egg to adult in the life-cycle guide.
🐢 Quick quiz
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What is the main job of the glands described near a sea turtle’s eyes?
What does osmoregulation describe?
What can we conclude from fluid near a turtle’s eyes alone?