FUR REAL?

Dogs have three eyelids—the third helps keep the eye moist. Built-in maintenance layer.

✓ TRUE FACT
The nictitating membrane (third eyelid) protects the eye and spreads tears. It also helps remove debris, reducing irritation during running and digging.

More Fur Real? facts

Snakes use their tongue to smell. Sensory design went creative.Narwhals have horns because they wanted to be mythical and inconvenient.Butterflies exist to prove glow-ups are real and sometimes aggressive.Pet rabbits can be litter trained like cats. Clean habits are species-agnostic.Goldfish can recognize human faces. The myth owes them an apology.Cows chew cud because they’re still processing that one comment from 2017.See all Fur Real? facts →

Explore more

📂 All Fur Real? Facts🔍 All Facts
Dogs have three eyelids—the third helps keep the eye moist. Built-in maintenance layer. | SmartAss Facts