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Scientists finding a new geometric shape that explains and shows how our skin cells pack and fit together.

As the epithelium of our skin grows and curves, the cells must adjust and take on new shapes to pack using as little energy as possible. They took not just a random form, but the form of a scutoid.

Well, these are building blocks like in Minecraft, only for our skin.

#facts on @science ๐Ÿ‘
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A steel razor blade can get dull surprisingly quickly when cutting something as soft as hair, and now researchers have gotten their first up-close look at how a close shave actually damages an everyday disposable razor.
This leading-edge research, described in the journal Science, used a scanning electron microscope to peer at a razor as it sliced through strands of hair.
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The shell of a turtle is more than just a cover, itโ€™s a vital part of the animalโ€™s skeleton that protects its organs. And although pet turtles are usually safe from the dangers that might crack it, wild ones arenโ€™t so lucky. Fires, and especially cars often damage them, causing serious consequences. However, not every injury they inflict is fatal. With proper care, cracked turtle shells can be fixed, and one wildlife organization has come up with a genius way to do so. Recently, Wildthunder Wildlife & Animal Rehabilitation & Sanctuary took to Facebook, asking for discarded bra fasteners: โ€œWe use them to mend our turtle shells!โ€ they wrote.
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Here is a hungry rotifer attacking and eating another protozoan unicellular organism.

Look how fast the first attack was. If anything, the video was filmed in real time, with a hundred times magnification.

@science
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Forwarded from Daily Science to all
There are predators in nature that do not attack when they are looked into the eyes. Therefore, some African tribes wear masks backwards to keep predators away. It looks creepy, yes. But the main thing is that it works.

In parts of India, people, going into the forest, also put on a mask in the form of a face on the back of their heads.

For this reason, to scare away, for example, mountain lions, you can try to put on a hat, on which believable toy eyes will be glued on the back.
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Mouse brain visualized by light sheet microscopy
Nature Methods (2022) doi: 10.1038/s41592-022-01468-5
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An amazing little Fruit Fly of the Family Tephritidae with incredibly realistic ants on itยดs wings. They look as though they are biting onto the abdomen of the fly. This fly was only about 3 mm long, but even from a distance, it looks like ants are feeding on the fly.
@science
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Robotics contest will build a biomimetic robot based on winning entry

More and more, we're finding that by copying nature, we can develop technologies that are capable of performing previously impossible functions. A new contest encourages that kind of thinking, by inviting ideas for nature-inspired robots โ€ฆ and the winning entry will actually be made into a robot.
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An Artificial Retina aiming to restore sight for people with damaged retinas.

This medical implant is suitable for people who have damaged photoreceptors (cones and rods) but otherwise a functioning retina, as is the case for many patients suffering from retinitis pigmentosa or advanced dry AMD.

The implant will be inserted subretinally, where photoreceptors are located in a healthy retina. The artificial retina acts as a substitute for the damaged photoreceptors by converting light into a signal the brain can interpret.

This artificial retina is standalone and self-powered by ambient light, using photovoltaic effect: it does not require external power sources or glasses-mounted camera.
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