Ship strikes — collisions between ships and large marine life — are a serious threat to whales and other large marine creatures. According to the non-profit Friend of the Sea, ship strikes kill more than 20,000 whales every year.
Now, new research, published in the Proceeding of the National Academy of Sciences (PNAS), has identified ship strikes as a likely cause for the alarming decrease in the population of the world’s largest fish, the whale shark.
Whale sharks are slow-moving, filter-feeding carpet sharks that can grow up to 70′ long. Whale sharks were declared endangered in 2016. Over the last several decades, more than half of all whale sharks have vanished from the ocean. Some populations have fallen by more than 60 percent.