Rear-guard action for the innocent grey nurse
Grey nurse sharks have been killed in their thousands over the past two centuries. Originally hunted for their liver oil and later mistakenly blamed for shark attacks at Sydney beaches, fewer than 500 now remain on the east coast of Australia. With numbers continuing to decline by an estimated 18 sharks per year, these critically endangered and slow-breeding animals face local extinction. Researchers at the Macquarie University have joined an escalating race to help save them.