According to the World Wildlife Fund, there are seven levels of extinction risk. Extinct, extinct in the wild, critically endangered, endangered, vulnerable, near threatened and least concern. There are some animals on the critically endangered and endangered lists that you may not even know about.

Check out these 10 animals that face possible extinction and visit the link below to find out how you can help.

Sea Lions

Categorized as endangered, these well-known sea creatures are suffering from foreign diseases, as well as suffering the consequences of climate change.

Hawksbill Sea Turtle

These majestic animals can be found around coral reefs in the tropics and are categorized as critically endangered.

Chimpanzee

Perhaps the most well-known monkey, and one we share 98% of our DNA with, is endangered.

Asian Elephant

Spanning 13 countries, the Asian elephant is smaller than its African counterpart. The Asian elephant is considered endangered with fewer than 50,000 in the wild, while the African elephant is only vulnerable.

Photography: Wikimedia Commons | Yathin Krishnappa

Red Panda

This adorable cat-like, bear-like creature native to the Eastern Himalayas is endangered and there are fewer than 10,000 left in the wild.

Orangutan

This beautiful primate is critically endangered. There are only about 104,000 of the Bornean orangutan, fewer than 14,000 of the Sumatran orangutan and only about 800 of the Tapanuli orangutan.

Rhino

The Black, Sumatran and Javan Rhino are all critically endangered. The Sumatran Rhino has a population of fewer than 80, the Javan Rhino only 60 and the Black Rhino has fewer than 6,000.

Bonobo

Similar to the chimpanzee, we also share about 98% of our DNA with the Bonobo. With around 10,000-50,000 left in the wild, this monkey is categorized as endangered.

Photography: Wikimedia Commons

Blue Whale

The Blue Whale is the largest animal on the planet, weighing approximately 200 tons. Unfortunately, it's endangered and experts estimate there are about 10,000-25,000 remaining.

Gorilla

The Cross River Gorilla and the Eastern Lowland Gorilla are critically endangered. Both native to the Congo Basin, there are only around 200 of the Cross River Gorilla and there is no estimate for the Eastern Lowland Gorilla.