The article “Vocalizations of Killer Whales (Orcinus orca) in the Bremer Canyon, Western Australia” by Rebecca Wellard gave Australia a building block of acoustic features of underwater sounds produced by killer whales in Australian waters. Orcas inhabit all of the world’s oceans and have been sighted in all state and territory waters in Australia. With this species being so predominantly found in this location they needed much more than the limited information they had about the killer whale. Cetaceans utilize acoustic communication for social interactions, group cohesion, mating, mother-calf contact, travelling, navigation, hunting and foraging (Wellard 1). The killer whale makes three forms of communication: echolocation clicks, burst- pulse