The Sonardyne tsunami detection system is based on a Compatt 6 subsea transponder that uses the latest Wideband acoustic signal technology to provide robust through water communications in difficult acoustic conditions.
exists and is an alternate of . The Megalodon was approximately 40 feet (12 metres) long, although fossil records show that they could often grow as large as 78 feet (18 metres). So if you were to stand the Megalodon on its nose it would be as tall as a six story building.
New research about Megalodon and its demise. Around 400 years ago, megalodon teeth were thought to be petrified tongues. In 1667, the Danish anatomist Nicolas Steno figured out from his dissection of a great white shark head that they were the teeth of ancient large sharks.