Ducks Grow Tiny Whiskers Inside Their Beaks
Mallards and other dabbling ducks have rows of soft, hair-like structures called lamellae lining the inside of their beaks. These tiny bristles work like delicate combs, allowing the birds to sift through water and mud for tiny insects, seeds, and plant matter.
💡 Fun detail:
Scientists have found that these lamellae grow in different shapes and spacings depending on the duck species’ preferred diet, making each beak a custom-built strainer.
Source: National Geographic