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Scoop.it!
"When you inflate a balloon and then release it without tying the valve shut, it certainly shoots away quickly. Octopi utilize the same basic principle, although they suck in and then rapidly expel water. An international team of scientists have now replicated that system in a soft-bodied miniature underwater vehicle, which could pave the way for very quickly-accelerating full-size submersibles." 
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Scoop.it!
"The Robot Safari in London Science Museum will see the world premiere of the underwater robot U-CAT, a highly maneuverable robot turtle, designed to penetrate shipwrecks. U-CAT’s locomotion principle is similar to sea turtles. Independently driven four flippers make the robot highly maneuverable; it can swim forward and backward, up and down and turn on spot in all directions. Maneuverability is a desirable feature when inspecting confined spaces such as shipwrecks. The robot carries an onboard camera and the video footage can be later used to reconstruct the underwater site."
Scoop.it!
The giant sunfish is a highly adapted jellyfish hunter and deep-water diver. What can we learn from his strange technique?
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Scoop.it!
"From its overall shape, inspired by the efficient contours of fish and dolphins, to its active sonar, originating in the study of bats, the answers to problems of natural selection can be found throughout the submarine. Since ancient times, humans have sought to solve problems with technology, and they've often been inspired to do so by observing how animals and plants found elegant solutions to similar problems. In looking deeper into these solutions recently, scientists have been repeatedly astonished at the sophistication and optimal performance of evolutionary adaptations. They have discovered light sensors that can detect single photons, skin that can magically repel water, acoustic lenses that focus sound beams, and bugs that can solve calculus problems. To put it plainly: we humans are increasingly realizing that nature offers a lot of great designs to steal."
Scoop.it!
"Sometimes the answers to some of the most challenging problems with technology can be found in nature. Researchers hoping to design more agile and fuel-efficient submarines are taking cues from the unique and elegant way stingrays swim. Scientists at Harvard University and the University at Buffalo are studying how stingrays move, including the seemingly effortless way the fish's round and flattened bodies ripple through water. The new research could inspire the development of next-generation unmanned submarines for ocean exploration, clean-up efforts or rescue missions."
Scoop.it!
The blind cavefish has a problem. In the absolute blackness where it lives, no light illuminates its world. Yet the small fish has traded its eyesight for a different way to perceive its environment: "touch at a distance."
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