Leatherbacks are members of the jack family. They tend to be solitary or seen in small groups, but until recently, I hadn’t been seeing any at all. I don’t know why that was, but they seem to be back in their usual numbers and activities now.
Leatherback
Graham's Island 
When I saw the title I was expecting a turtle! An impressive fish though.
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I think the name comes from them having very tough skin.
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I think he looks a little bit angry!
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They do have that look.
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