how can u determine male or female for a columbian sharks???

Answer 1

I tried doing a search and every site I looked at either said nothing about it or said that it was unknown. The females will lay the eggs and the males will incubate them it his mouth though, but they have never been successfully bred in aquariums.

Answer 2

maybe by the bites a shark has on its body.u know a fmeale gets bitten by the males so i just guessed the answer.