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ScienceDaily: Fossils & Ruins News |
| Unique fossil: Seeds sprouting from an amber-encased pine cone Posted: 16 Nov 2021 10:17 AM PST New research has uncovered the first fossil evidence of a rare botanical condition known as precocious germination in which seeds sprout before leaving the fruit. |
| Climate changed abruptly at tipping points in past Posted: 16 Nov 2021 08:14 AM PST Climate scientists identify abrupt transitions in climate records that may have been caused by the climate system crossing a tipping point. They devised a statistical method to determine whether these transitions are simply noise or evidence of a more significant change. Their method is less error-prone than previous methods, since it doesn't rely on human determination. It also allows comparing different records consistently and can identify important events that may have been overlooked in older studies. |
| Sierra Nevada range should celebrate two birthdays Posted: 15 Nov 2021 06:02 AM PST New research reveals that after its initial formation 100 million years ago, the Sierra Nevada 'died' during volcanic eruptions that blasted lava across much of the American West 40 million to 20 million years ago. Then, tens of millions of years later, the Sierra Nevada mountain range as we know it today was 'reborn.' |
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