Were you ever told about something so unbelievable that you didn’t believe it, because you had not seen it with your own eyes? I know I have. Join us, as we look at unbelievable videos filmed by divers.

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Ancient Beaked Whale Skull

During a dive on Papahānaumokuākea Marine National Monument's Don Quixote Seamount, a team of divers discovered an old beaked whale skull that had never been examined. The bone, found about 7841 feet on the northern face of a peak, merges in with the surrounding basalt lava flows. Both are covered with a thick manganese polymetallic rock layer, which has most likely been in situ for hundreds of thousands, if not millions, of years. In the Central Pacific, this dark rock covers the whole seafloor.

One of the expedition's goals is to discover more about the region's geologic history, particularly questions regarding how quickly these rock crusts grow and how old these ancient seamounts are. Beaked whales are toothed cetaceans with special adaptations for foraging in the open ocean at great depths. Adaptations to this harsh habitat include collapsing lungs, which enable them to dive far deeper than other predators.

Balloon-Like Bolitaenid Octopus

This is a bolitaenid octopus discovered while divers were exploring an unnamed guyot northwest of Kingman Reef. Their control van was ecstatic to see this balloon-like species, initially thought to be a piglet squid but later verified to be a diaphanous pelagic octopod, float across the screen as the ROV Hercules investigated the seafloor.

The pelagic octopus, “Japatella diaphana”, is found all over the world, particularly on seamounts and knolls. It is distinguished by its modest size and relatively short arms in comparison to the dome-shaped mantle. Experts have worked on two previous excursions to expand global baseline knowledge of this isolated region's deepwater ecosystems and seafloor formations, which are larger than the state of New Mexico.

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