How many classifications of animals are wild animals?

There are approximately 900,000 arthropod species within the animal kingdom (insects and Spiders), 100,000 species of roundworms and mollusks, and fewer than 50,000 species of vertebrates (20,000 fish, 8,700 birds, 6,000 reptiles, 2,500 amphibians, and 4,500 mammals).

In total, that makes approximately 1,050,000 species within the animal kingdom.