CALIFORNIA GRIZZLY
Although it is the central figure in the state's flag, the last grizzly in California was spotted in the Sierras in 1924.

CAROLINA PARAKEET
The last known Carolina parakeets were sighted on Lake Okeechobee in 1904 by ornithologist Dr. Frank Chapman.

DODO
The last dodo bird died in 1681.

GREAT AUK
The last great auk (Pinguinus impennis) was killed by collectors on Eldey Island in 1844.

MEXICAN SILVER GRIZZLY
The last Mexican Silver Grizzly was killed in 1964 by ranchers protecting their herds.

MONK SEAL
The last monk seal was seen off the Bahamas in 1959, in Inagua,.

PASSENGER PIGEON
The last passenger pigeon, named Martha, died in captivity in the Cincinnati Zoo in 1914. Her stuffed body is on permanent display at the Smithsonian Institution.

WOLF
The last wolf in Great Britain was killed in Scotland, in 1743. Wolves were extinct in England by 1500.