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Volcano earthquake report for Monday, 28 September 2026
• M 4.9 - 124 km SE of Pondaguitan, Philippines
• M 4.9 - 124 km SE of Pondaguitan, Philippines
• M 4.2 - 7 km SE of Denali National Park, Alaska
• M 5.4 - north of Svalbard
• M 2.4 - 70 km SSW of Nikolski, Alaska
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#179033
Fri 16 Aug 2013 01:48: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 |
Scientists have revealed how females select the 'right' sperm to fertilize their eggs when faced with the risk of being fertilized by wrong sperm from a different species. Researchers investigated salmon and trout. They found that when eggs from each species are presented with either salmon or trout, they allow fertilization by either species' sperm. But if eggs are given a choice of both species' sperm, they favor their own species'.  Source: How females choose the 'right' sperm
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How females choose the 'right' sperm
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Fri 16 Aug 2013 01:48:PM
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