Discover the Largest Ocean-Dwelling Animals of All Time

Hundreds of years ago, people assumed that huge teeth found along the shores of rivers and oceans belonged to dragons. The truth that has been discovered sounds just as fanciful as fire-breathing dragons – those six-inch teeth belonged to a giant extinct shark that would make a great white look like a guppy! Explore the planet’s largest ocean-dwelling animals of all time in this intriguing video.