SHARK CONSERVATION (1969) – ‘Firstly, any small effort’ The Grey Nurse shark was first species to be given protection. Big Seal Rock NSW Sharks saved by a rough cesarean operation. Sandra Greentree inspired her friends this day at North Stradbroke Island, Queensland. John Harding was filming sharks for NHK (Japan) TV. PIX magazine was first to publish this shark saving story. Shark cesarean birth.