WattSearch
Your WattLeaderboard
Language
Autoplay narration
Appearance

Feedback

Have a question or an idea? Something not working? Send us a message.

What would you like to share?
Up to 3 files, 5 MB each, 12 MB total.
Or contact us directly
Telegram · @xt0tam

Direct contacts open a separate chat or email. Files attached here are not included.

arohalya@gmail.com
A little wonder, every day

An owl's three eyelids

Титульна AI-згенерована ілюстрація / AI-generated cover illustration. Spotted eagle-owl perched at dusk, with face and eyes in focus.
Spotted eagle-owl with nictitating membrane over one eye.
Ferruginous pygmy owl facing forward.
AI-generated close-up reconstruction of a translucent membrane sweeping across an owl's eye.
AI-generated illustrative scene combining a resting owl and an inset-like view of its nictitating membrane.
1 / 5

Титульна AI-згенерована ілюстрація / AI-generated cover illustration. Spotted eagle-owl perched at dusk, with face and eyes in focus.

Listen to fact0:00 / —

An owl has an upper and a lower eyelid, plus a third, semi-transparent nictitating membrane. In most owl species observed in one study, the upper lid closes during a blink, while the lower lid rises when the bird dozes or sleeps. The nictitating membrane sweeps across the eye, helping moisten its surface and clear small particles. Eyelid movements can vary among species.