The authors of the work managed to test in practice how sharks perceive the swimming patterns of people and animals. Before
PhD, researcher of sensory systemsanimals Laura Ryan said they used several moving cameras that moved at the speed of the predatory sharks, and stationary GoPro cameras underwater. The scientists filmed people swimming in different styles and on surfboards of different sizes, as well as seals and sea lions. The authors of the work then created special programs to simulate the way a young white shark processes the movements and shapes of various objects.
Scientists find evidence of deadly fight between megalodon and sperm whale
Researchers have found that surfers, swimmersand pinnipeds (seals and sea lions) on the ocean surface look the same to a shark because it does not see fine details or color differences. Smaller surfboards, however, are more difficult to distinguish from animals and are therefore more tempting prey than longboards.
Professor Nathan Hart, who leadsThe Neuroscience Lab believes that as they grow, sharks develop an image to search for prey and combine it with other sensory information. This learning process can be flawed. Therefore, despite good eyesight, young sharks are more dangerous to humans than old ones.
“Now sharks are endangered.Our fear of them has led to the use of nets and other defenses that threaten the life of marine life. Understanding why they attack humans will help prevent attacks while keeping both humans and sharks safe, ”said Laura Ryan.
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