Port Jackson, Australia. Home to the Port Jackson Sharks who can only be found around Port Jackson but do they always gather. To find out, Ian takes four Port Jackson Sharks from the reef, taking them some way out and giving them tags to find out if they do return there. It is also the mating season and female Port Jackson Sharks are releasing their eggs but Ian wonders if the mums care for them by placing them in rock crevices to protect them. What will he discover?moreless
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