An investigation some of the most incredible footage of mysterious creatures that have been caught on tape. The world is a mysterious place. Humans have been classifying life for over 250 years and still have only discovered about ten percent of all the species alive on the planet right now. This means that 90 percent of all species that currently exist are yet to be discovered. Much of Earth’s life remains unknown and unseen. Imagine what creatures lurk in the world’s jungles and in the depths of the ocean. From Bigfoot sightings to strange sea creatures, today we take a look at 25 mysterious creatures that have been caught on tape.