This undated handout photo provided by NOAA shows a deep-chimaera, a boneless fish that is a distant evolutionary relative to modern day sharks taken by an unmanned submersible on NOAA's Okeanos Explorer in a 2010 in deep water off of Indonesia. These are the type of fish that are seen at great depths in the world's oceans and might be the type director/explorer James Cameron could see on the way to the deepest spot on Earth, the Mariana Trench. But these type of fish won't be on the bottom, nearly 7 miles down, because scientists say no traditional fish can survive at depths much past 5 miles.  Cameron said. (AP Photo/NOAA)
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