Some species of hummingbird have as little as 600 of their kind left, including the Oaxaca, Mangrove, and Chestnut-billed hummingbirds.

This species, Przewalski’s horses, have only 1,500 left. They’re typically not domesticated and roam the Mongolian hills.

While alligators have been on the endangered species list for a long time and there are conservation efforts in place, people are still hunting them for their meat and skin.

Many different species of fruit bats are endangered, but the small-toothed fruit bat has only seven known individuals left.

This particular species of ground squirrel, the San Joaquin Antelope ground squirrel, has lost 80% of its former habitat. Because of this, there are only about 124,000-413,000 of these guys left.

It’s common knowledge that the beloved monarch butterfly is endangered, but there are over 30 other subspecies in need of attention, mainly as a result of pesticide use.

Another rodent that you may have thought to be overly abundant whose losing his home is the mouse. Certain species, like Himalayan field mouse and the white-tailed mouse, have dwindled seriously in number over recent years.

Some species in California are in severe danger do to loss of habitat and pollution. You might think you’d be happy to see snakes go, but just wait until you see how off-kilter the ecosystem would be without them!

Surely you recognize this guy as a common household pet, and it’s partially for that reason that these guys are going extinct. The caged bird trade, as well as loss of habitat put sun parakeets and grey-cheeked parakeets on the endangered species list.

Over the past 20 years, we’ve lost 90% of the entire chinchilla population. Part of this is due to people hunting them for their soft fur.

Counting down the days until that first summertime crawfish cookout? Many crayfish species are drastically dropping in numbers, including the sweet home Alabama crayfish, which would be a shame to see fall off of the edge of the planet, if for no other reason but the name alone.

Many varieties of the musk deer are dwindling in numbers. These small species of deer, including the black musk deer and the Himalayan musk deer, may look a bit prehistoric…but they’re about to become history if no one does anything about it!

With a 50% decrease in population over the past three generations, the wild water buffalo are at risk because of habitat loss and interbreeding between the domestic and wild ones.

You might think of vultures as being ruthless and able to sustain themselves in even the harshest of conditions, but the Egyptian vulture is down to as little as 13,000 individuals throughout Europe, Africa, and India.

With only 5,000 individuals of the San Cristobal mockingbird left, these incredible creatures could be on their way out.

One hundred years ago, over two million Sierra Nevada bighorn sheep roamed the U.S. Now, there are fewer than 70,000.

Because of urban development, climate change, and pollution, over 80 subspecies of snails are either endangered or threatened…and that’s only in the U.S.

The stellar sea lion still has a solid number of individuals, but a very troubling decline in numbers, especially in the Gulf of Alaska, has conservationists very worried.