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Little else was known about the 30-40 day moult, until Fretwell spotted large brown smudges in satellite pictures from 2019-2025. They turned out to be mounds of feathers, left in an area called Marie Byrd Land.
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VITURE成立于2021年，总部位于北京和旧金山，创始人姜公略毕业于哈佛大学，是前谷歌眼镜的成员，深度参与了谷歌眼镜的研发。
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