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Immune system: Built-in viruses are hereditary immune memory

Immune system : Built-in viruses could being hereditary immune memory Our genetic material also contains remnants of old viruses. There is now evidence that they have a function in the immune system. Similar to CRISPR-Cas9 in bacteria, they could intercept viruses. by Lars Fischer © tracielouise/Getty Images/iStock (detail) Virus genes built into the genome could […]

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Ecology: Storms starve seabirds

Ecology : Storms leave seabirds starve In winter hundreds or thousands of emaciated seabirds end up on the beaches of Europe or North America. Storms are also to blame. However, they do not kill directly. by Daniel Lingenhöhl © David Grémillet, La Rochelle University (detail) In January and February 2019, thousands of dead guillemots drove […]

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Biocomposites: Metal makes ant teeth hard

Biomaterial : Ants bite too metallic teeth Thanks to an unusual combination of materials, the jaws of some animals are far superior to our teeth. They are just as hard & nbsp; – but much more stable. by Lars Fischer © Henrik_L/Getty Images/iStock (detail) Ants have to use 60 percent less force to bite things […]

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Giant squids: the love life of the legendary “octopus”

Giant squids : The love life of legendary »octopuses« A paternity test with a surprising outcome raises questions about the reproduction of the giant squid. Perhaps the role model of the mythical sea monster is lifelong & nbsp; true. by Bettina Wurche © DB Royal Society/dpa/dpaweb/picture alliance (excerpt) A fisherman from Kyoto made a special […]