Marine
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An underwater expedition off the coast of Chile has discovered 160 species not known to live in the region, at least 50 of which are new to science. The information will inform marine protection strategies for important regions in international waters.
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An age of greener, more efficient shipping may be in the offing as a specially modified 43,000-tonne bulk freighter completes a six-month sea trial using a combination of diesel engines and a set of high-tech automatic sails to catch the wind.
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Sharrow's extraordinary looped propellers were already some 30% more efficient than traditional designs – and now the company has put two of them together into a coaxial, contra-rotating prop that promises to be even more energy-efficient.
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Hovering uncannily close to the waves, the Airfish-8 carves its way over water three times quicker than a boat, and 2.3 times more efficiently than an aircraft. Singapore's ST Engineering has announced its first orders, set to enter service in 2025.
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Yamaha previously announced it would show a prototype hydrogen outboard at the 2024 Miami Boat Show. Instead of simply revealing the motor, it's installed it on a prototype boat complete with fuel delivery system. Testing will begin this year.
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A remarkable pilot project installed on a 240-m (787-ft) container ship has proven it's possible to capture at least 78% of emissions from the smokestacks of cargo ships and convert the CO2 into limestone pebbles, which can be offloaded and sold.
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Despite how cute 2001's Finding Nemo's clownfish was, these colorful animals have a dark side. Scientists have found that they will 'count' another clownfish's white stripes, and will viciously attack any visitor that happens to look just like them.
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Scientists have had a career-making moment, capturing on film a dolphin with such a rare skin condition that only five other recorded examples exist. The dramatic black-and-white look, or piebaldism, has never been seen on a dolphin in Australian waters.
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Scientists have uncovered a new huge predatory worm species thought to have hunted in the Earth’s water column around 518 million years ago. They also believe this worm, whose name means terror beast, was one the earliest carnivorous swimming animals.
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Though efforts to clean up plastic waste from our oceans are well underway, it's also vital to stem the tide at a major source of pollution: rivers. Researchers in South Korea are looking to doing just that at a "living lab" facility in Gongju.
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Ships can become mobile wave energy converters, say Chinese researchers, using "heaving oscillators" that draw power from heaving, rolling and pitching movements as they move through the sea, while also acting as motion dampers to improve safety.
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What has eyes, antennae, swimming bristles, a genes stash and a feel for autonomy? The rear end of the bizarre Japanese green syllid worm. Scientists now know how the end of the animal detaches and swims off to find a similar tail of the opposite sex.
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