Mammals:
* Large mammals: Elephants, rhinoceroses, giraffes, lions, tigers, bears, wolves, deer, etc.
* Small mammals: Squirrels, rabbits, mice, rats, bats, moles, etc.
* Primates: Monkeys, apes, lemurs, etc.
* Marine mammals: While not technically terrestrial, some mammals like seals, sea lions, and walruses spend significant time on land.
Birds:
* Flightless birds: Ostriches, emus, penguins, etc.
* Flying birds: Hawks, eagles, owls, parrots, hummingbirds, etc.
* Waterfowl: Ducks, geese, swans, etc.
Reptiles:
* Lizards: Iguanas, chameleons, geckos, etc.
* Snakes: Pythons, cobras, vipers, etc.
* Turtles: Sea turtles, tortoises, etc.
* Crocodiles and alligators: Crocodiles, alligators, caimans, etc.
Amphibians:
* Frogs: Tree frogs, bullfrogs, poison dart frogs, etc.
* Toads: Common toads, cane toads, etc.
* Salamanders: Newts, mudpuppies, etc.
Insects:
* Beetles: Dung beetles, ladybugs, fireflies, etc.
* Butterflies and moths: Monarch butterflies, swallowtail butterflies, etc.
* Ants: Fire ants, carpenter ants, etc.
* Bees and wasps: Honey bees, bumblebees, yellow jackets, etc.
Other Invertebrates:
* Spiders: Tarantulas, wolf spiders, etc.
* Scorpions: Desert scorpions, etc.
* Earthworms: Night crawlers, redworms, etc.
* Slugs and snails: Garden snails, banana slugs, etc.
And many, many more! This is just a glimpse into the vast array of animals that call terrestrial ecosystems home. The specific species present will depend on the climate, geographic location, and habitat type of the ecosystem.
