Spending so much time close to shore puts sharks at risk of exposure to toxic pollutants. People should also be careful not to be attacked.
Scientists from the United States have found that over the past 10 years, sharks have begun to swim as close as possible to cities. They are already a danger to humans. The new study was led by the University of Miami's School of Marine and Atmospheric Sciences.
Research was published on the website int-res.com.
Given the chemical, light and noise pollution coming from coastal megacities, the researchers expected sharks to move away from areas located near cities. However, it turned out to be quite the opposite.
“We were surprised to find that sharks The ones we tracked spent so much time near the cities,” said Neil Hammerschlag, director of the UM Shark Research and Conservation Program.
Sharks are thought to be attracted to human activities on land. For example, throwing away fish carcasses.