Marine mammals and sonar concern, but very little definitive information was known. In 1995 a comprehensive book on the relation between marine mammals and noise had been published, and it did not even mention strandings. In 2013, research showed beaked whales were highly sensitive to mid-frequency active sonar. Blue whales have also been shown to flee from the source of mid-frequency sonar, while naval use of mid- and high- frequency side-scan sonar was deemed 'the most probable cause' of a mass stranding of around 50 short-beaked common dolphin ("Delphinus delphis") on 9 June 2008 in Falmouth Bay, Cornwall, UK. There was anecdotal evidence from
The Snow Creature begins to change Parrish’s opinion regarding the creature’s existence (such as the tell-tale “giant footprints”). Finally, the team makes contact with the snow creature, who hurls stones at them from atop his mountain refuge. The expedition tracks the creature to his cave, where they encounter the creature, along with two other Yeti’s - a female and young one. The team also discover Subra’s wife, who is guarded jealously by the snow creature. Parrish forcibly prevents the enraged Subra from shooting the Yeti, reasoning that the creature is more valuable for science alive. This delays the capture long enough to enable