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ScienceDaily: Top Science News |
| Colossal collisions linked to solar system science Posted: 07 Jun 2022 09:09 AM PDT A new study shows a deep connection between some of the largest, most energetic events in the universe and much smaller, weaker ones powered by our own Sun. |
| How species form: What the tangled history of polar bear and brown bear relations tells us Posted: 06 Jun 2022 03:12 PM PDT A new study is providing an enhanced look at the intertwined evolutionary histories of polar bears and brown bears. Becoming separate species did not completely stop these animals from mating with each other. Scientists have known this for some time, but the new research draws on an expanded dataset -- including DNA from an ancient polar bear tooth -- to tease out more detail. |
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