Any dog that digs in the earth, for example to catch foxes in holes

A cochlear implant.

Any of the genus Myotis of bats within the family Vespertilionidae.

A dog's ear that folds backward and shows part of the inside.

A dog's ear that falls forward and completely hides the inside.

A variety of glauconite, found in cavities in amygdaloid and other eruptive rock, and used as a green pigment by artists.

Alternative form of each to his own

in an ear-splitting way; extremely loudly.

(medicine, informal) otoliths

Micranthes virginiensis, native to eastern North America.