From the largest shark to ever exist to giant sloths, some believe that animals thought to be completely extinct may still survive in small pockets across the globe.
While many believe that the Wooly Mammoth is forever gone (despite recent efforts to bring it back from extinction by Russia), sightings often occur of what many believe are living, breathing mammoths.
This is also true of giant sloths and some sea creatures.
The fascinating video below by Top Media explores 10 animals thought to be extinct that very well may be alive and well.
