Great white shark (Carcharodon carcharias)

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I add to my previous posting, that obviously megalodon was an apex predator at the time it lived, only competitors most likely livyatan and then ancestors of orcas later. I mention these two because it´s difficult to think other species, which might have been able to compete maybe also in close range like eating same carcass, if some big whale killed. Livyatans because of their similar size and ancestors of orcas because of their intelligence and ability to work together. 

This is of course speculation, but if any smaller species, orcas could have been able to be "pain in the ass" even if not lethal threat directly. After all it´s one thing to be able to do something and another to make a move against something as dangerous as megalodon have been. Still I dare to doubt, that orca calves haven´t been first choice of hungry megalodon to try luck.

I see it so, that even though megalodon can be said to have been the most dangerous species individually at the time, still it has had competitors which have been no jokes. It´s good to remember, that what is for us a "monster" can be to competitors "just another big fish with teeth". Maybe demanding respect, but not totally terrifying. Naturally from human point of view, it´s difficult to find from seas anything as terrifying as sharks. Reply