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The Port Jackson Shark has a squarish head with a small mouth and a crest above each eye. Two triangular dorsal fins are tipped with venomous spines. They are grey to brown coloured with a dark band over the head and a dark pattern over the body that camouflages well with shadows in the water. They are a docile shark most active at night, during the day they congregate in caves or under ledges. In spring they migrate to breeding areas up to 850kms away.
Coastal waters around reefs, rocky estuaries to about 250m deep.
Spotted this shark at the Sydney aquarium. A breeding program at the aquarium releases these sharks back into areas around Sydney.