Predation risk is a contributing factor that helps to shape distribution, group size, group competition and habitat use of small cetaceans. Some larger shark species, undergo dietary shifts in prey preferences as they mature, expanding their diet to include marine mammals. In the presence of predatory sharks, dolphins have been shown to move to deeper, more open waters, spend time in larger groups in shallower waters, increase their speed when travelling, and undertake increases in leap frequency to avoid potential attack. In south-east Queensland (SEQ), 16 dolphin species have predicted ranges extending across a variety of habitats in SEQ waters. Whether the natural threats to the SEQ dolphins differs between the sheltered waters of the Great Sandy Marine Park and the open waters of the Sunshine Coast has not yet been ascertained. Initial results suggest Australian humpback dolphins (Sousa sahulensis) are more susceptible than Indo-Pacific bottlenose dolphins (Tursiops aduncus) to shark predation attempts; dolphins inhabiting the embayment show a higher frequency of shark bite wounds. These results indicate that some species are more susceptible to shark interactions, and that habitat type may be influencing the prevalence of shark bites on dolphins in the region.