Camels have three eyelids to survive desert sandstorms

Camels boast a remarkable adaptation for desert life: three eyelids. Beyond the two outer lids, they possess a transparent nictitating membrane that slides across the eye like a natural windshield wiper. This unique third eyelid clears away sand and dust during intense storms, allowing camels to see and navigate even when visibility is poor. It also helps keep their eyes moist in extreme heat, conserving vital water and preventing irritation in arid environments. This evolutionary advantage highlights how camels thrive where others struggle.