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ScienceDaily: Fossils & Ruins News |
A chronicle of giant straight-tusked elephants Posted: 21 Jan 2020 09:40 AM PST About 800,000 years ago, the giant straight-tusked elephant Palaeoloxodon migrated out of Africa and became widespread across Europe and Asia. |
Posted: 21 Jan 2020 08:30 AM PST Researchers have found an explanation for why very little nitrogen could previously be accounted for in the nebulous covering of comets: the building block for life predominantly occurs in the form of ammonium salts, the occurrence of which could not previously be measured. The salts may be a further indication that comet impacts may have made life on Earth possible in the first place. |
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