Australia's Jack Hills zircon crystals are believed to be the oldest ever discovered on Earth. Researchers dated crystals about 4,375 million years ago, just 165 million years after the Earth was formed. Zircon provides insight into what the initial state of the Earth was.
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16 types of hedgehogs European hedgehogs. The European hedgehog, or Erinaceus europaeus, is often referred to as the "common hedgehog." Southern White Breasted Hedgehog. The southern white hedgeho (...)
Nouns, plural deer, (sometimes) deer. One of several ruminants in the deer family, most of the males have stiff, deciduous antlers. One of the smaller species of this family, distinguished from el (...)
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