Nonhumans
Lashes, being hair, are found in mammals. Camels' lashes are remarkably long and thick. Horses, cows, and also ostriches (vestigial feathers without barbs) feature eyelashes as well. Inherited eyelash problems are common in some breeds of dogs.
Eyelash vipers show a set of modified scales over the eyes which look much like eyelashes. Hornbills have prominent feather eyelashes, an uncommon feature in birds.
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