Boole (tree) the largest in Converse Basin Grove, was named around 1895 by A.H. Sweeny, a Fresno doctor, after Franklin A. Boole, a supervisor of the logging operation who spared the tree's life due to its great size. Before 1931, it was thought by many to be the largest tree in the world (although the General Grant Tree was more popularly known as the largest tree in the world at that time), but it is now known as the sixth largest tree, after five other giant sequoias: the General Sherman tree, the General Grant, the President tree, the Lincoln tree, and the
Giant tree-rat ancient greek word (), meaning "mouse, rat". "Toromys" is the sister genus to "Pattonomys". These taxa are closely related to "Echimys", "Phyllomys", and "Makalata", reflecting the fact that "Toromys grandis" and "Pattonomys occasius" have formerly been placed in "Makalata" by some authorities. In turn, these five genera share phylogenetic affinities with a clade containing the bamboo rats "Dactylomys", "Olallamys", "Kannabateomys" together with "Diplomys" and "Santamartamys". Giant tree-rat The giant tree-rat ("Toromys grandis") is a species in the family Echimyidae, the spiny rats. It is the only species in the monotypic genus Toromys. It is endemic to Brazil, where it occurs