Sharks can “blink” and “wink”. Sharks are generally perceived as scary (Thanks, Jaws.) but they can wink quite a charm. The nictating membrane covers and protects a shark’s eyes and – in doing so – gives it a blinking or winking appearance.
100 Mind-Blowing Wink Facts
Camels have three eyelids. If a camel winks at you, you’re getting three times the wink of the average person. Camels have three eyelids to protect their eyes from the harsh sands of their environments.