Alexander Selkirk used this cave as a shelter for most of the four years he was stranded on Isla Mas a Tierra—now called Robinson Crusoe Island.
Photograph courtesy Library of Congress
clarity or sharpness of thought.
to tame or adapt for human use.
strong and long-lasting.
wild or untamed, but descended from domesticated animals.
confrontational or unfriendly.
to confine or put in a jail-like facility.
something that influences the development of an idea.
a species that does not naturally occur in an area. Also called alien, exotic, or non-native species.
body of land surrounded by water.
private ship or person commissioned by a government during war.
sacred song or musical poem.
distant or far away.
person who works aboard a ship.
any aquatic organism that has a shell or exoskeleton.
strength and power to endure difficulty.
to abandon or leave in a vulnerable position.
root vegetable related to a radish.
final or maximum.