Question: animals that have gone extinct but came back?
Answer: Chelonoidis phantasticus (Fernandina giant tortoise)—Galápagos Islands.
Pterodroma cahow (Bermuda petrel)—Nonsuch Island, Bermuda.
Equus ferus caballus (Caspian horse)—Missouri & California.
Coelacanthiformes (coelacanth)—Southern Africa & Indonesia.
Porphyrio hochstetteri (takahē)—New Zealand.