Wikipedia:Main Page history/2021 September 1
From today's featured articleLevel Mountain is a large volcanic complex in the Northern Interior of British Columbia, Canada, with a maximum elevation of 2,164 m (7,100 ft). The lower half of Level Mountain consists of a shield-like edifice while its upper half has a more steep, jagged profile. Its broad summit is dominated by the Level Mountain Range, with prominent peaks cut by deep valleys. The mountain began forming about 15 million years ago, with volcanism continuing up until geologically recent times. Level Mountain can be ecologically divided into three sections: an alpine climate at its summit, firs and birches on its flanks and a spruce forest at its base. Several animal species thrive in the area of Level Mountain, with caribou being the most abundant. Due to its remoteness, Level Mountain can only be accessed by air or by trekking great distances on foot; the closest communities are more than 30 km (19 mi) away. (Full article...)
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Pieris brassicae, the large white, is a species of butterfly in the family Pieridae, common in Europe, Asia and North Africa. The larva, pictured here at a market in Fronton, France, is a serious pest of plants in the cabbage family, Brassicaceae. The eggs are laid in batches on the undersides of the leaves of plants rich in mustard-oil glucosides, and consumption of these substances as they chew the leaves makes the larvae distasteful; the bright colouration of the larvae signals to predators that they taste bad. Additionally, the adult butterflies emit an unpleasant smell and display warning colours. Photograph credit: Didier Descouens
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