Because of their fierce reputation, orca are sometimes called the Ballena asesina ("assassin whale"
by the Spanish. They were referred to as "whale killers" by sailors who witnessed their attacks on larger cetaceans, and over time this name was changed to "killer whales."
Brazil is the largest of the Latin American countries. Covering nearly half (47.3 percent) of the continent of South America, it occupies an area of 3,286,470 sq. miles (8,511,965 sq. km). It is the fifth largest country in the world after the Russian Federation, Canada, China, and the United States.
Taken from the UN New Centre.