6 GREATEST Ocean Mysteries (That Science Can't Explain)

What if the biggest mysteries aren't in outer space, but in our own oceans? We know more about the surface of Mars than our own seafloor, and it's time to dive into the darkness.

Join our investigation into 6 of the most baffling deep-sea mysteries that science still can't fully explain. We're exploring the ultimate ghost ship, the Mary Celeste, hearing the monstrous sound of The Bloop, seeing the sunken city of Yonaguni, and uncovering the truth behind living legends.

Which of these unexplained ocean mysteries do you find the weirdest? Let us know in the comments, and subscribe for more Odd Why's!