If you can see the sun, you're unlikely to ever see a ghost shark. That's because ghost sharks, or chimaeras, are found so deep underwater that the sun's rays can't penetrate. This particular ghost shark, which is a pointy-nosed blue chimaera, was filmed in 2009 in the North Pacific for the ...

An ROV (remotely operated underwater vehicle) was doing a deepwater riser inspection on a deepwater drilling rig in the Gulf of Mexico and came across... a rather large Tuna!!! According to the video the riser in the background is nearly four feet across, which could mean this enormous tuna would ...