Distinguished by a long tail and advanced wing design, the Super Sub is equipped with a propulsion system with four powerful thrusters that delivers a total of 60 kW allowing for steep 30-degree climbs and dives.
If the name Peter Sotis rings a bell, it is no coincidence. He was Rob Stewart's dive buddy when the filmmaker tragically lost his life on a deep rebreather dive in 2017, after which he was ostracised by the dive community as well as sued by Stewart’s family for his role in Stewart's death. Both the incident and the lawsuit have been covered in the magazine.
Why sharks sometimes bite humans remains unclear, but potential reasons include mistaken identity, whereby sharks are thought to mistake humans for their typical prey; curiosity; hunger; and defensive/offensive aggression.
The mistaken identity theory has received little scientific scrutiny and the visual similarity between humans and pinnipeds at the surface has been debated largely on the basis of human visual perception, rather than that of sharks.
Can hunting by echolocation be as fast as hunting by sight?
As visual animals, we may find this a peculiar question—not so if one applies it to animals that hunt using echolocation, like bats, dolphins and whales. These animals emit clicking sounds and use the reflected echoes to determine the location of objects and other animals.
Can animals that hunt using echolocation lock onto their prey and track their movements, and how fast can they react? These were questions that an international team of researchers sought to answer.
