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BiologyA sluggish, bottom dwelling species, very little is known about the life history of the bramble shark, but it is thought likely to be slow growing and late maturing (1) (2) (4). With bony fish, small sharks and crustaceans being common prey, it is probably capable of short bursts of speed whilst hunting (1). Employing an ovoviviparous reproductive mode, the 15 to 20 pups that comprise a litter, develop within eggs inside the mother's body and emerge alive after hatching (1) (2). Nothing is known about the length of time the pups take to develop or the amount of time between successive breeding (1).