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 Hardest Logic Puzzle Ever situation is enormously complicated by the fact that although all the natives understand English perfectly, an ancient taboo of the island forbids them ever to use non-native words in their speech. Hence whenever you ask them a yes-no question, they reply "Bal" or "Da"—one of which means "yes" and the other "no". The trouble is that we do not know which of "Bal" or "Da" means "yes" and which means "no."" There are other related puzzles in "The Riddle of Scheherazade". The puzzle is based on Knights and Knaves puzzles. One setting for this puzzle is a fictional island inhabited