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From today's featured articleVolcanism of the Mount Edziza volcanic complex in British Columbia, Canada, spans more than 7 million years. The first magmatic cycle took place between 7.5 and 6 million years ago and is represented by the Raspberry, Little Iskut and Armadillo geological formations. Volcanism has taken place during five cycles of magmatic activity, each producing less volcanic material than the previous one. During these cycles volcanism has created several types of volcanoes, including cinder cones, stratovolcanoes, subglacial volcanoes, shield volcanoes and lava domes. The roughly 1,000-square-kilometre (400-square-mile) volcanic plateau of the MEVC originated from the successive eruptions of highly mobile lava flows. Several types of volcanic rocks were deposited by multiple eruptions of the MEVC. At least 10 distinct flows of obsidian were produced by volcanism of the MEVC, some of which were exploited by indigenous peoples in prehistoric times to make tools and weapons. (Full article...)
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On this dayJanuary 13: Eugenio María de Hostos's birthday in Puerto Rico (2025); Saint Knut's Day in Finland and Sweden
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From 1975 to 2024, there have been 37 male winners and 45 female winners of the Amsterdam Marathon, a 42.195 km (26 mi 385 yd) road race across the city of Amsterdam in the Netherlands. In the inaugural edition in 1975, Jørgen Jensen was the men's winner, with a time of 2:16:51, and Plonie Scheringa was the women's winner, finishing in 3:13:38. Gerard Nijboer (pictured) won the 1980 race in 2:09:01, which was recognized as a world-best marathon performance by the Association of Road Racing Statisticians until 1981. The current men's course record is 2:03:39, set by Tamirat Tola in 2021, and the current women's course record is 2:16:52, set by Yalemzerf Yehualaw in 2024. Nijboer won the Amsterdam Marathon four times, more than any other athlete, in 1980, 1984, 1988, and 1989. In the women's category, Scheringa, Marja Wokke, and Tadelech Bekele each won twice. Over the years, athletes representing Kenya, Ethiopia, and the Netherlands have been the most successful in winning the marathon. (Full list...)
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The fork-tailed flycatcher (Tyrannus savana) is a bird in the family Tyrannidae, the tyrant flycatchers. Named after their distinguishably long, forked tails, particularly in males, fork-tailed flycatchers are seen in shrubland, savanna, lightly forested and grassland areas, from southern Mexico south to Argentina. They tend to build their cup nests in similar habitats to their hunting grounds (riparian forests and grasslands). Males perform aerial courtship displays to impress females involving swirling somersaults, twists, and flips, all partnered with their buzzing calls. These courtship displays utilise the long tail feathers. This male fork-tailed flycatcher of the subspecies T. s. monachus was photographed in Cayo District, Belize, demonstrating its characteristic forked tail while in flight. Photograph credit: Charles J. Sharp
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