Tsundere is a pretty common term used in the anime community but there are still many who don't know what is actually means. Tsundere is actually a term derived by fans to classify a type of anime character that is becoming more common, usually a female lead.
Throughout the Corps more than 4,000-mile journey, Captains Lewis and Clark recorded 178 plants and 122 animals not previously known to science. Lewis recorded and pressed and preserved some 240 different plant species and brought them back to Washington, along with hundreds of animal and bird skins and skeletons.
Rivers, Edens, Empires: Lewis & Clark and the Revealing of America. Lewis & Clark. When Thomas Jefferson sent Lewis and Clark into the West, he patterned their mission on the methods of Enlightenment science: to observe, collect, document, and classify. Such strategies were already in place for the epic voyages made by explorers like Cook and Vancouver.