1. Mammals:
- Humans: Homo sapiens
- Apes: Chimpanzees, gorillas, orangutans
- Monkeys: Baboons, macaques, marmosets
- Elephants: African elephants, Asian elephants
- Lions: African lions, Asiatic lions
- Tigers: Bengal tigers, Siberian tigers, Sumatran tigers
- Dolphins: Bottlenose dolphins, orcas, humpback dolphins
- Whales: Blue whales, humpback whales, sperm whales
- Bats: Big brown bats, vampire bats, fruit bats
2. Birds:
- Eagles: Bald eagles, golden eagles, harpy eagles
- Falcons: Peregrine falcons, merlins, kestrels
- Owls: Barn owls, great horned owls, snowy owls
- Hummingbirds: Ruby-throated hummingbirds, Anna's hummingbirds
- Penguins: Emperor penguins, Adelie penguins, Galapagos penguins
- Storks: White storks, black storks, marabou storks
- Parrots: Macaws, cockatoos, lovebirds
3. Reptiles:
- Snakes: Cobras, vipers, pythons, boa constrictors
- Lizards: Monitor lizards, chameleons, geckos
- Crocodiles: Nile crocodiles, saltwater crocodiles, American alligators
- Turtles: Green sea turtles, loggerheads, box turtles
- Tuataras: Found in New Zealand
4. Amphibians:
- Frogs: Poison dart frogs, bullfrogs, tree frogs
- Toads: American toads, European green toads
- Salamanders: Tiger salamanders, giant salamanders, newts
5. Fish:
- Sharks: Great white sharks, tiger sharks, whale sharks
- Rays: Manta rays, stingrays, eagle rays
- Tuna: Bluefin tuna, yellowfin tuna, albacore tuna
- Swordfish: Broadbill swordfish, shortbill spearfish
- Salmon: Atlantic salmon, Pacific salmon, pink salmon
- Clownfish: Found in coral reefs
- Angelfish: Found in coral reefs
6. Invertebrates:
- Insects: Butterflies, beetles, ants, bees, spiders, grasshoppers
- Crustaceans: Crabs, lobsters, shrimps, prawns, krill
- Mollusks: Oysters, clams, mussels, squids, octopuses
- Echinoderms: Starfish, sea urchins, sea cucumbers
It's important to note that this is just a tiny glimpse into the vast array of animals that call Earth home. There are millions of known species, and many more yet to be discovered. The animal kingdom is incredibly complex and diverse, and studying it is a fascinating field of science that contributes to our understanding of the natural world.