A newly-discovered species of dolphin found off the Queensland and Territory coasts in 2005 catches its prey by spitting at it. World Wildlife Fund (WWF) Australiaâs marine and coasts manager Lydia Gibson said the small dolphins hunt in groups, chasing fish to the surface and rounding them up by shooting jets of water from their mouths. This behaviour has only been noted in Irrawaddy dolphins, which are closely related. Research shows that habitat destruction is the key threat to the snubfins. They are vulnerable to pollution, viruses and bacteria because they live close to shore, and are more likely than other dolphins to get caught in gill nets.