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World Earthquake Report for Friday, 2 October 2026
• M 0.5 - 10 km SE of Winchester, CA
• M 1.8 - 65 km SE of Chalkyitsik, Alaska
• M 3.0 - 71 km NE of Punta Cana, Dominican Republic
• M 1.3 - 5 km NNE of Progreso, B.C., MX
• M 0.9 - 22 km ESE of Anza, CA
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#287042
Fri 20 Feb 2015 07:26:PM
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Joined: Feb 2001
Posts: 678,977
Launch Director
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Launch Director
Joined: Feb 2001
Posts: 678,977 |
Bacteria may not have brains, but they do have memories, at least when it comes to viruses that attack them. Many bacteria have a molecular immune system which allows these microbes to capture and retain pieces of viral DNA that they have encountered in the past, in order to recognize and destroy it when it shows up again.  Source: Virus-cutting enzyme helps bacteria remember a threat
David Cottle
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Virus-cutting enzyme helps bacteria remember a threat
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