Shedding light on the senses fish use for navigation Apr 25, Mar 20, Aug 06, Inside the colourful world of animal vision Nov 07, Jun 05, Jul 16, Recommended for you. Secrets of a sex-changing fish revealed 5 hours ago. Marine scientists discover an important, overlooked role sea urchins play in the kelp forest ecosystem 10 hours ago. Jul 09, User comments. Sign in. Forgot Password Registration. What do you think about this particular story? Your message to the editors. Your email only if you want to be contacted back. Send Feedback. E-mail the story Deep sea fish eyesight similar to human vision.
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Wie die Seenotrettung erschwert wird. Sea-Eye resumes rescue missions Regensburg 9 September From the Seefuchs: Successful rescue of 16 people from wooden boat in distress Call from MRCC Rome alerting us about sighting of two wooden boats at a distance of about 25 nms from the Libyan coast.
Sea-Eye suspends planned missions Today we decided with a heavy heart to temporarily suspend our planned rescue missions in the Mediterranean. To let people drown means moral failure and can be justified by nothing. The following eight people of 1, explain why they committed to Sea-Eye. Ruth Moschner Presenter and Writer. In this clip he explains his motivation.
Patrice Reggae Musician. Bavarian rapper Liquid is different from his kind. He does not call for hate, but for emergency relief. This is why he supports Sea-Eye and calls for donations.
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Liquid Bavarian Rapper. He knows from experience what it means to be in distress.
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Sight has its costs, though. The researchers found that the aragonite eye structures are not as strong as the surrounding armor. Though the two are made of the same mineral, the aragonite in the eyes has a different crystalline structure. That different structure, along with a pore space beneath the eyes, makes them weaker. Thus, they fracture more easily. Chitons have come up with a few protective strategies, the researchers found.
Weird Sea Mollusk Sports Hundreds of Eyes Made of Armor
The eye structures are clustered in tiny "valleys" in the mollusk's armor, which help keep them safe. Their underlying layers seem to be hard and thick, so that any damage doesn't penetrate fully. And chitons have up to 1, eyes and can grow more throughout their lifetimes, replacing any that are damaged. Humans are a long way from being able to replicate this natural system, Li said, because fabricating such intricate microscopic structures is still impossible.
Eventually, though, manufacturers might be able to 3D-print structural panels with built-in optical capabilities. And researchers still need to find out how these simple little mollusks integrate information from the hundreds of eyes dotting their bodies. Original article on Live Science.