In part four of Saving the Oceans, Joel finds out how knowledge of the seas from Australia’s Aboriginal communities can feed into modern ocean science. And at Seasim - the world’s largest marine research laboratory - he looks at the ways human fertilisation treatments are being applied to help conserve coral. This includes techniques from human sperm banks being applied to coral. He also speaks to the scientists unlocking coral genetics in an attempt to help them survive rising sea temperatures.(Image: Inside the SEASIM facility at the Australian Institute of Marine science a Coral Sperm Bank is being developed)

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