They animals may be gone, but for how long? For this list, we’re looking at species that researchers consider good candidates for de-extinction in the near future.

These animals defied the odds! Welcome to WatchMojo, and today we’re counting down our picks for the animals that were saved from going extinct.

Bye, bye, birdie, indeed. For this list, we’ll be going over the most interesting animals which have either died out entirely, or which have so few members that they’re functionally extinct.

Our world is changing, and these at-risk animals are paying the price. For this list, we’re looking at endangered species who are most at risk for going extinct in the next 30 years. WatchMojo counts down the 10 Animals That Could be Gone by 2049.

These animals bite the dust and it's our ancestors' fault. Welcome to WatchMojo, and today we’re counting down our picks for the species that were eradicated by human activity.

If you see one of these deadly creatures, run! For this list, we’ll be looking at animals and insects that pose a danger to humans...but we will not be including humans on this list.

Humans have been hunting animals for centuries, whether for sport or livelihood. But, if the natural world suddenly took revenge, if animals like tigers, bears and wolves teamed together to hunt us down, then humankind could be in A LOT of trouble! The oceans would be swimming with potential predators, and our cities would be home to all kinds of danger. In this video, Unveiled imagines a world where animals hunted humans. What do you think? Could humanity survive?

You may be surprised to find these amazing animals on the list of endangered species. WatchMojo presents the top 10 animals that you may not have realized are actually under serious threat? But what will be the most surprising to you? Hummingbirds, the Wild Water Buffalo, or the Gorilla? Watch to find out!

There are many animals thought to be extinct, but they may be alive today. From the Megalodon to the Japanese River Otter to the Passenger Pigeon, to the Javan Tiger to the Mexican Grizzly Bear to the Woolly Mammoth, these are animal species that vanished but could resurface someday. Are these extinct animals still alive today? Maybe; they could be found alive at any moment! WatchMojo counts down ten animals we thought were extinct but might be alive!

Unfortunately, there have been many species extinctions caused by humans. Whether they were animals hunted to extinction like the Quagga, the Western Black Rhinoceros or the Steller’s Sea Cow, or made extinct by habitat loss like the Javan Tiger, these animals went from endangered species to extinct species – because of us. WatchMojo counts down ten animals driven to extinction by humans.

It goes without saying that some animals are dangerous... But the creatures on this countdown are the dark horses of danger! Join http://www.WatchMojo.com as we count down our picks for the Top 10 Surprisingly Dangerous Animals!

These animals are HUGE! Welcome to WatchMojo, and today we’re counting down our picks for the largest animals currently living on Earth.

If you fall into the ocean, steer clear of these animals. Welcome to WatchMojo, and today we’re counting down the strongest animals and insects in or around the world’s oceans, whether in absolute or pound-for-pound terms.

You don't want to mess with these dangerous creatures. Welcome to WatchMojo, and today we’re counting down the most hazardous animals, bugs, and fish in the land and territorial waters of the United States.

These animals are wicked strong! Welcome to WatchMojo, and today we’re looking at physical strength, bite power, and limb force to determine which is the pound-for-pound strongest creature of the animal world.