This North American butterfly has wings that feature a recognizable orange and black pattern. Monarchs are known for their lengthy annual migrations, which exceed the lifetime of any given butterfly. How the species manages to return to the same spots over several generations is still the subject of research, but scientists believe that circadian rhythm and the position of the sun are involved. What is aposematism, and how do monarch butterflies exemplify it?
Back in the day
The Spiegel scandal was a major political controversy in West Germany at the height of the Cold War. It began when the popular German publication, Der Spiegel, printed a cover story stating that West Germany's defense against a Soviet invasion was inadequate. The magazine was accused of treason, its editors were arrested, its offices were seized and searched, and thousands of documents were confiscated. Essentially, the scandal boiled down to a conflict between what two men?
Born on a day like today
PerÃ³n was President of Argentina from 1946-1955 and from 1973-1974. His populist appeal to the poor was enhanced by the charisma and work of his second wife Eva (â€˜Evita'). After her death in 1952, his popularity waned and, with increasing economic difficulties and labor unrest, he was deposed in a military coup in 1955. PerÃ³n fled to Paraguay and Spain, but returned from exile to the presidency in 1973, only to die in office the next year. In 1987, PerÃ³n's tomb was profaned; what was stolen?