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4 days ago · The Cambrian explosion (also known as Cambrian radiation or Cambrian diversification) is an interval of time approximately in the Cambrian period of the early Paleozoic when a sudden radiation of complex life occurred, and practically all major animal phyla started appearing in the fossil record.
May 15, 2024 · SMART NEWS. Earth’s Magnetic Field Nearly Collapsed 600 Million Years Ago. Then, Weird and Complex Life Evolved. A new study suggests more solar radiation reached Earth while the magnetic field...
- Tara Wu
May 15, 2024 · These analysts note that the current activity level of Russian nuclear submarines in the Atlantic mirrors that of the Cold War era. The presence of up to 11 Russian nuclear submarines has notably unsettled NATO countries, particularly the United States, prompting them to deploy their own underwater assets to monitor these Russian submarines.
The electronical problems caused in Hawaii from the detonation were unexpected. You seem to be implying that a nuclear race occurred because of a war on aliens, and not because of the cold war with Russia. Feel free to correct me, as that seems like a bizarre take considering the low-tech available during that time.
May 28, 2024 · A ten-second burst would have stripped the Earth's atmosphere of half of its ozone almost immediately, exposing surface-dwelling organisms, including those responsible for planetary photosynthesis, to high levels of extreme ultraviolet radiation.
May 23, 2024 · A nuclear and radiation accident is defined by the International Atomic Energy Agency (IAEA) as "an event that has led to significant consequences to people, the environment or the facility." Examples include lethal effects to individuals, large radioactivity release to the environment, or a reactor core melt. [6]
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5 days ago · Editor’s summary. Mammals have drawn particular research attention because of their huge level of morphological variation. Until recently, most believed that the dinosaur decline at the end of the Cretaceous opened niches for mammals to fill, resulting in a burst of speciation. Quintero et al. developed a model that integrated phylogenetics ...
