Animal including salt water, hydrothermal vents, fresh water, hot springs, swamps, forests, pastures, deserts, air, and the interiors of animals, plants, fungi and rocks. Animals are however not particularly heat tolerant; very few of them can survive at constant temperatures above . Only very few species of animals (mostly nematodes) inhabit the most extreme cold deserts of continental Antarctica. The blue whale ("Balaenoptera musculus") is the largest animal that has ever lived, weighing up to 190 metric tonnes and measuring up to long. The largest extant terrestrial animal is the African bush elephant ("Loxodonta africana"), weighing up to 12.25 tonnes and
The Road Goes Ever On The Road Goes Ever On The Road Goes Ever On is a song cycle that has been published as a book of sheet music, and as an audio recording. The music was written by Donald Swann, and the words are taken from poems in J. R. R. Tolkien's Middle-earth writings, especially "The Lord of the Rings". The title of this opus is taken from "The Road Goes Ever On", the first song in the collection. The songs form a song cycle, designed to fit together when played in sequence. With Tolkien's approval, Donald Swann wrote the music for this song