Eh, don't be embarrassed :-). The only reason I know is cuz I live for Shark Week on the Discovery Channel
. But that spinner shark? I had no idea what that was. Shark, yes, that I knew. But what kind? That was unclear. I couldn't tell from the perspective of the photo how far away it was cuz i wasn't sure what kind it was. Looked like it could have been a black tip reef shark, in which case it was tiny. But if it were a bigger shark, it would have had to have been something ominous. But the CNN article had it, and I was like huh? What's a spinner shark? Found out it was the Requiem family. I just like sharks, so I know 'em. Presidential History and Star Trek? I've got skills there, too. Math, vehicles, physics, the art of making coffee? I'm clueless there.