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
Buru (legendary creature) a large Komodo dragon-like monitor lizard, and there are fossils of such a creature to be found in the Indian subcontinent. Heuvelmans notes similar reported creatures from Western India under the name of "jhoors" where they seem to merge into the Iranian traditional dragon or ahi (Azi Dahaka), which in Iranian art is basically a local stylistic adaptation of the Chinese dragon. George Eberhart notes rumors of a similar creature in the Tigris marshes of Iraq, called the afa, possibly the same thing as ahi. Heuvelmans also notes in his checklist of unknown animals that similar reports to the buru