Dr. Austin Gallagher

Join a fearless team of shark experts using a 29-foot whale decoy to start a massive feeding frenzy to uncover dominant "Queen Boss" females.

Researchers brave a great white shark feeding frenzy inside a whale decoy.

In the Caribbean, a deep-sea camera captured footage of a 14-foot tiger shark suffering an assault by a large, unseen beast. It could be an unknown species of mega-shark or even a cannibalistic tiger shark. Dr. Austin Gallagher wants to find out.

Join Dr. Austin Gallagher and his fearless team as they deploy a 29-foot whale decoy to attract and study massive great whites in New Zealand. Witness their feeding frenzy as they uncover dominant "Queen Boss" females ruling male-dominated clans.

Dr. Austin Gallagher and his team investigate an aggressive population of hammerhead sharks in Turks and Caicos, which could be an entirely new species.