This week Andrew is joined by David Donnelly from Killer Whales Australia, and they discuss all things marine mammal.  David has had an incredible career since 1994 and has many stories and research to share with the wider community, incluing the story of Old Tom of Eden.  Tune in to find out who he was and why his behaviour was so unique, as well as where killer whale research is at currently with the Two Bays Whales Project.