HAPPY SHARK AWARENESS DAY 🦈💙The Queen 👑 #sharkIDNikkiThe white eyelid is called the nictitating membrane. 👁 It protects the eye when the shark is close to an object such as a person or a boat or when feeding. 🎥: @hannahtuomistobell @oneoceandiving_ #sharkdive #savethesharks #sharkawarenessday