Printer Friendly

Tuna 'fly' through the oceans.

GIANT bluefin tuna possess a unique hydraulic control system that allows them to "fly" through the ocean like fighter jets, scientists have discovered.

Lymphatic fluid pumped through internal channels causes their large sickle-shaped fins subtly to change shape, aiding manoeuvrability at high speed.

In just the same way, fast jets rely on fine adjustments to their control surfaces to remain stable in the air.

Experts learned about the lymphdriven hydraulics after studying Pacific bluefin and yellowfin tuna swimming in tanks.

Dr Vadim Pavlov, from Stanford University in the US, said: "What we have discovered in these tunas is unlike other animal hydraulic systems. It's a musculo-vascular complex that is integrating the lymphatic system, the skeletal muscles and fin bones.

"We've shown that in tunas and their fast-swimming relatives this complex functions to generate hydraulic pressure that provides fine adjustment of the shape of their fins."

COPYRIGHT 2017 Birmingham Post & Mail Ltd
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2017 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Publication:Birmingham Mail (England)
Date:Jul 24, 2017
Previous Article:Big jump in trampoline park injuries.
Next Article:Minibus lifeline to school in memory of sports champion.

Terms of use | Privacy policy | Copyright © 2020 Farlex, Inc. | Feedback | For webmasters