Wikipedia:Main Page history/2020 July 2
From today's featured articleIchthyovenator is a genus of spinosaurid dinosaurs that lived in what is now Laos, sometime between 125 and 113 million years ago. The fossils of a single specimen were found between 2010 and 2014 and became the holotype of the new genus and species Ichthyovenator laosensis. It is estimated to have been 8.5 to 10.5 metres (28 to 34 feet) long and weighed around 2.4 tonnes (2.6 short tons). Ichthyovenator is considered a primitive member of the Spinosaurinae and would have had a long, shallow snout and robust forelimbs. It had a sail on its back that may have been used for sexual display or species recognition. The diet of Ichthyovenator (meaning "fish hunter") probably consisted mainly of aquatic prey. Spinosaurids were probably adapted for semiaquatic lifestyles, and also ate small dinosaurs and pterosaurs. The tall vertebral spines of Ichthyovenator's tail suggest that it may have aided in swimming—as in today's crocodilians. (Full article...)
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The Ijen volcano complex is located on East Java, Indonesia. An active vent at the edge of a crater lake is a source of elemental sulfur, and supports a labor-intensive mining operation. Escaping volcanic gases are channeled through a network of ceramic pipes, resulting in condensation of molten sulfur. The deep red condensate pours slowly from the ends of these pipes and pools on the ground, turning bright yellow as it solidifies. The miners break the cooled material into large pieces and carry it away in baskets. Miners carry loads of up to 90 kilograms (200 lb), up to the crater rim and then 3 kilometres (1.9 mi) down the mountainside for weighing. Most miners make this journey twice a day, and in 2010 could earn the equivalent of US$13 for their efforts. Photograph credit: Candra Firmansyah
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