Identical twins share virtually all of their genes, and fraternal twins share about 50%. This makes twins ideal subjects for behavioral geneticists, since they can compare how each individual in a pair is influenced by genes, shared family environment, and individual experience. One of the pioneers of twin studies was 19th-century scientist Sir Francis Galton, who was influenced by the work of his cousin, Charles Darwin. What fundamental misconception colored the research of early twin scholars?
Ralph Waldo Emerson
Back in the day
On August 16, 1819, 60,000 men, women, and children gathered at St. Peter's Field in Manchester, England, to protest unemployment and high food prices. To disperse the gathering, city officials sent in the untrained volunteer cavalry, which attacked the unarmed crowd with sabers. At least 11 people were killed and hundreds more were wounded. The incident, likened to the Battle of Waterloo, sparked widespread indignation. In 2007, a memorial plaque at the site was changed to include what?
Born on a day like today
Gilmore was a prominent Australian socialist poet and journalist who gained a reputation as a champion of the working class and the oppressed. In the late 1890s, she moved to the New Australia utopian socialist settlement in Paraguay, but she returned to Australia following its failure. In 1908, she became an editor of the Australian Workers' Union newspaper, and she published her first volume of poems two years later. On what denomination of Australian currency does her image and poetry appear?