1. Extinct
2. Not extinct

The dodo was bigger than a turkey. It is estimated that the bird weighed about 50 pounds.

1. Extinct
2. Not extinct

The International Union for Conservation of Nature estimates that there are over 100,000 narwhal individuals in the wild. The organization estimates that the average narwhal lives between 30 and 40 years.

1. Extinct
2. Not extinct

In the 19th century, Pinta Island tortoises were killed for food. The species was thought to be extinct until Lonesome George was found in 1971.

1. Extinct
2. Not extinct

In 2011, the Western black rhinoceros was declared extinct. Due to poachers seeking the rhinoceroses horns, preservation action was taken starting in the 1930s.

1. Extinct
2. Not extinct

An aye-aye can live to be around 20 years old. The species can only be found on Madagascar. Aye-ayes are related to primates, such as chimpanzees and apes.

1. Extinct
2. Not extinct

The Japanese sea lion used to be found in the Sea of Japan. While little is known about them, International Union for Conservation of Nature assumes they are similar to California sea lions.

1. Extinct
2. Not extinct

At one time, the passenger pigeon was the most populous species in North America. In the 1800s, the birds were hunted to extinction.

1. Extinct
2. Not extinct

Since 1996, the Amur leopard has been classified as Critically Endangered. Between 2007 and 2015, the Amur leopard population in Russia and northeastern China increased from 30 to almost 60 cats.

1. Extinct
2. Not extinct

There only 200 to 300 Cross River gorillas in the wild. They suffer from illegal hunting and habitat loss.

1. Extinct
2. Not extinct

The quagga was native to South Africa. The quagga used to be though of as a separate species until DNA analyses showed it was a subspecies of the Plains zebra. In the 1980s, the Quagga Project was established to breed zebras that look like quagga.

1. Extinct
2. Not extinct

In the last 75 years, the Sumatran orangutan has lost 80 percent of its population. There are approximately 6,600 Sumatran orangutans living.

1. Extinct
2. Not extinct

The saola can only be found in the Annamite Mountains forests, which are located on the Vietnam-Laos border. Humans first discovered the saola in 1992.

1. Extinct
2. Not extinct

In 2000, the Pyrenean ibex became extinct. During the 1990s, the population dropped to below 100. The animal lived in France and Spain.

1. Extinct
2. Not extinct

Vaquitas live in the northern Gulf of California. Illegal fishing has resulted in the vaquita population dwindling in the last few years.

1. Extinct
2. Not extinct

The pangolin is also known as the scaly anteater. There are eight species of pangolin: the Chinese, the Indian, the Malayan, the Palawan, the Tree, the Giant Ground, the Cape, and the Long-tailed.

1. Extinct
2. Not extinct

In the 1950s, the hot springs where the Tecopa pupfish lived became popular with tourists. This forced the fish to go downstream to colder water, which was not hospitable for the fish. The Tecopa pupfish has the distinction of being removed from the provisions of the Endangered Species act because it was extinct.

1. Extinct
2. Not extinct

On Feb. 21, 1918, the last known male Carolina parakeet died at the Cincinnati Zoo. "Incas" died with in a year of "Lady Jane," who was his mate.

1. Extinct
2. Not extinct

In the early 1800s, great auks were killed by hunters. In June 1844, the last great auks were killed on Eldey Island, Iceland.

1. Extinct
2. Not extinct

Farmers often hunt and kill African wild dogs to protect their domestic animals. The dog's sub-Saharan habitat is also shrinking.

1. Extinct
2. Not extinct

In 1768, Steller's sea cow was discovered. Thirty years later it was extinct due to sailors hunting the sea cow for food.

1. Extinct
2. Not extinct

In 1993, an international ban on tiger trading was put into place. Within the last 100 years, tigers have lost large portions of their habitats, which are also becoming fragmented.

1. Extinct
2. Not extinct

There are approximately 1,500 Borneo pygmy elephants. DNA evidence showed that they were isolated from their cousins on mainland Asia and Sumatra about 300,000 years ago.

1. Extinct
2. Not extinct

The Galapagos penguin breeds on Isabella, Fernandina, Floreana and Santiago islands. In 2009, the population was estimated to be between 1,800 and 4,700 individuals.

1. Extinct
2. Not extinct

There are approximately 50,000 Saiga antelopes left. The antelope is extinct in China and Ukraine.

1. Extinct
2. Not extinct

Russia banned the hunting of the Caspian tiger in 1947. However, the last tiger at the Tigrovaya Balka Nature Reserve was seen in 1958. The last Caspian tiger is said to have been killed in 1970.

1. Extinct
2. Not extinct

There are fewer than 10,000 red pandas left in the wild. The average lifespan for a red panda is 14 years.

1. Extinct
2. Not extinct

There are two types of seaside sparrow, the dusky and the cape sable. While the dusky seaside sparrow is extinct, the cape sable is alive, but vulnerable.

1. Extinct
2. Not extinct

The blobfish lives at deep depths. However, it is feared to be endangered because the blobfish is frequently caught up in seafloor trawlers.

1. Extinct
2. Not extinct

The Tasmanian tiger was native to Australia. The last wild Tasmanian tiger was killed in the 1910s. The species officially went instinct in 1936 with the death of the last captive one.

1. Extinct
2. Not extinct

The black spider monkey is also called the Guiana spider monkey. They are considered an essential part of the tropical rainforest ecosystem because they disperse seeds.

1. Extinct
2. Not extinct

The Caribbean monk seal was hunted for its blubber. The last confirmed Caribbean monk seal sighting was in the southern Caribbean. The species went extinct in 1952.

1. Extinct
2. Not extinct

The current population of aardvarks is not known. While humans are destroying their habitat, the International Union for Conservation of Nature does not believe the aardvark population is shrinking.

1. Extinct
2. Not extinct

Female naked mole rats can birth between one and 28 pups in one pregnancy. They can give birth every 76 to 84 days.

1. Extinct
2. Not extinct

In the mid-1980s, Costa Rican rainforests became hotter and dryer, which made the golden toad vulnerable to the chytrid fungus. The fungus leads to a fatal skin disease that caused the overall amphibian population in the area to decline.

1. Extinct
2. Not extinct

The Lake Mackay hare-wallaby is also konwn as the kuluwarri. It has been extinct since the 1950s.