Colin asphyxiates Lesley and Hazel's husband Trevor whilst they sleep. When he attacks Hayley, she asphyxiates him with plastic wrap. He asphyxiates, and then she attaches an alien parasite to his head. It requires plenty of water, but cannot handle stagnant water, as it asphyxiates the roots. These cause a loss of surface area around the gills, and the lobster eventually asphyxiates. The pyroclastic surge burns and asphyxiates any living beings and can reach temperatures of . A species of the family Pythonidae, non-venomous snakes that traps and asphyxiates prey. It does not tolerate low-oxygen waters and easily asphyxiates when deprived of oxygen.