Wildlife

Gizzard, a digestive organ of birds and certain other animals, such as earthworms, grasshoppers, and crayfish. A bird's gizzard has a thick, muscular… See more » Audubon Society (in full: National Audubon Society), an organization of persons interested in conservation, especially in the preservation of… See more » Arthropod, an animal of the phylum Arthropoda. This phylum of invertebrates (animals without backbones) includes insects, spiders, ticks, lobsters,… See more »