(dated) A hamadryas baboon (Papio hamadryas).

plural of dog-faced baboon

hearing dog

plural of dog-day cicada

A large American cicada (C. pruinosa), which trills loudly in midsummer.

A disputed phenomenon according to which black dogs tend to be passed over for adoption in favor of lighter-colored animals, perhaps because of superstition or the belief that they are more aggressive.

Cynomys gunnisoni, a species of prairie dog primarily distributed in the Four Corners region of the United States.

plural of dog's tooth violet

Erythronium dens-canis.

(slang, originally US) Wearing stylish and fancy clothing, having dressed up.