User blog comment:Adsper/All Possible Mobs/@comment-2804:14D:2A75:8A1C:DCC3:6CEC:6293:2099-20180514003434/@comment-35476439-20180520131002

That's because people latched onto the shark's "last name". It's full name was Carcharocles megalodon.

But you never see anybody calling it "Carcharcoles" so...