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The Hammerhead Shark is definitely one of the stranger looking sharks to cruise the warm waters of the world, however new research shows that there is method to madness.
Scientists in America have proven a long-held suspicions about the Hammerhead Shark and its strangely positioned eyes. A serious of tests were carried out on various sharks in tank conditions, shining lights at them at different angles and measuring their response via connected brain reaction sensors.
The tests concluded that Hammerheads forward-set eyes have overlapping fields of vision, giving them binocular vision. This makes the sharks particularly good at judging speed, position and depth of objects. It was also noted that the swaying motion of Hammerhead Sharks gives them an excellent view of what is behind them, as well having a 360 degree of above and below them. It seems little gets past the Hammerhead without it noticing.
The research was carried out by Dr Michelle McComb and Stephen Kajiura, of Florida Atlantic University, Boca Raton; and Prof Timothy Tricas, of the University of Hawaii, Manoa and is published in the Journal of Experimental Biology
The idea of Hammerheads having binocular vision goes back centuries, and arguments over their visual capabilities goes back decades. For example, in 1948, zoologist Gordon Walls, a leading authority on vertebrate eye evolution, suggested that the position of a hammerhead shark's eye precluded it from having binocular vision. Yet in 1984, leading shark expert Leonard Campagno countered by suggesting that the distance between a hammerhead's eyes would actually give it excellent binocular vision.
Incredible footage from BBC wildlife show: Hammerhead.
