Dr Nicolas Lubitz is researching bull shark breeding habits between Cairns and Sydney.
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00:20 Trying to get genetic samples off the little babies because we're trying to
00:36 relate them back to the big adults that we've been tracking all up and
00:39 down the coast.
00:40 So we've been tracking I think over 150 adults, and
00:43 they all got tracking devices on them.
00:45 And they've been moving between southern New South Wales and
00:48 northern Queensland, and they're doing all these crazy movements.
00:51 And with the genetic samples, we wanna figure out if they come back to the same
00:55 rivers to give birth, sort of like turtles do with their nesting beaches.
00:59 Cuz the genetics can actually tell us if the babies that we're catching in these
01:02 rivers are related to the adults.
01:04 So we can actually find mother-offspring pairs,
01:07 we can find the dads, the moms, the aunts, the cousins,
01:10 all these family relationships.
01:13 And if all the family relationships are within the same river,
01:15 are we sort of confident that they would come back to the same river?
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