An international team of scientists observing endangered great hammerhead sharks in Australia, Belize and Bahamas originally thought one of the predators was sick, but on closer observation they found it would switch from one side to the other.

Further observations using underwater cameras and accelerometers led them to discover the predators spend up to 90 percent of their time swimming rolled at angles between 50 and 70 degrees using their large dorsal fin to generate lift.

Hydrodynamic modelling with a physical model of a great hammerhead shark found the animal would suffer the least amount of drag, and therefore expend the least amount of energy, at precisely that angle range.

“The animals reduce the cost of transport by about 10 percent by using the side-swimming method” compared with traditional upright swimming, the study’s co-author, James Cook University researcher Dr Adam Barnett said in a statement on Tuesday.

“It just goes to show how much we don’t know about what goes on in the ocean.”

Great hammerhead sharks are solitary predators; however, due to overfishing and other human-related factors, they are disappearing from oceans at an alarming rate. Enditem

Source: Xinhua/News Ghana

1 COMMENT

  1. However, this even claims also, Thanks also to a said Staffperson for ‘ ‘ Ghanaian News ‘ ‘ for that this i of his/hers said columns for ‘ ‘ Ghanaian News ‘ ‘ on that that’s so also of life also with these said type of species of Sharkies also with it now here STILL recounts also that in this case also, ” ‘ ‘ ‘ ‘ Researchers have found hammerhead Sharks are just like ‘ ‘ ‘ ‘ ‘ ‘ LAZY ‘ ‘ ‘ ‘ ‘ ‘ human swimmers by choosing to swim on their sides in a bid to conserve energy, a study published in the journal ‘ ‘ ‘ ‘ ‘ ‘ Nature Communications ‘ ‘ ‘ ‘ ‘ ‘ shows…. Further observations using UNDERWATER cameras and accelerometers also led said researchers to discover the predators spend up to 0.9 ( the decimal equivalent for this said amount ) or 9/10 ( the fractional equivalent in simplest terms for this said amount ) of their time swimming rolled at angles between fifty ( 50 ) ( l ) and seventy ( 70 ) ( lxx ) degrees using their LARGE dorsal fins to generate lift…. ” ‘ ‘ ‘ ‘ The animals REDUCE the COST of transport by ABOUT 0.1 ( the decimal equivalent for this said amount ) or 1/10 ( the fractional equivalent in simplest terms for this said amount ) by using the sideswimming method compared with traditional upright swimming, ‘ ‘ ‘ ‘ ” the study’s coauthor, James Cook University researcher Dr. A. Barnett said in a statement on Tuesday…. ‘ ‘ ‘ ‘ ” for him/herself for him/herself, for ANYONE whosoever accepts also that this even claims also, Thanks also to a said Staffperson for ‘ ‘ Ghanaian News ‘ ‘ for that this i of his/hers said accounts for ‘ ‘ Ghanaian News ‘ ‘ on that that’s so also of life also with these said type of species of Sharkies also with it now here STILL recounts also that in this case also, ” ‘ ‘ ‘ ‘ Researchers have found hammerhead Sharks are just like ‘ ‘ ‘ ‘ ‘ ‘ LAZY ‘ ‘ ‘ ‘ ‘ ‘ human swimmers by choosing to swim on their sides in a bid to conserve energy, a study published in the journal ‘ ‘ ‘ ‘ ‘ ‘ Nature Communications ‘ ‘ ‘ ‘ ‘ ‘ shows…. Further observations using UNDERWATER cameras and accelerometers also led said researchers to discover the predators spend up to 0.9 ( the decimal equivalent for this said amount ) or 9/10 ( the fractional equivalent in simplest terms for this said amount ) of their time swimming rolled at angles between fifty ( 50 ) ( l ) and seventy ( 70 ) ( lxx ) degrees using their LARGE dorsal fins to generate lift…. ” ‘ ‘ ‘ ‘ The animals REDUCE the COST of transport by ABOUT 0.1 ( the decimal equivalent for this said amount ) or 1/10 ( the fractional equivalent in simplest terms for this said amount ) by using the sideswimming method compared with traditional upright swimming, ‘ ‘ ‘ ‘ ” the study’s coauthor, James Cook University researcher Dr. A. Barnett said in a statement on Tuesday…. ‘ ‘ ‘ ‘ ” him/herself for him/herself for him/herself, for fans, for readers, for visitors, for others also and even for us, too….

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