Tiger Shark wink #shark #sharks #sharkweek #ocean #explore #sealife #adventure Tiger Beach

When a Tiger Shark appears to be “winking,“ it’s actually covering its eye with a protective flap called the nictitating membrane. This built-in eyelid helps the shark protect its eye when it’s eating or in close proximity to potential hazards. But here’s where it gets truly amazing: even when the eyes are closed, the receptors on the front of a Tiger Shark’s snout continue to do their job. Those black dots you see are part of an incredible sensory system called the Ampullae of Lorenzini. Each one of those dots is connected to the shark’s brain, and together, they detect the electromagnetic fields produced by the muscle contractions of other animals.