Named for their habitat and warning call, which sounds similar to a dog's bark, prairie dogs are short-tailed, ground-living rodents native to the grasslands of North America. The highly social animals live in large colonies that can span hundreds of acres. Cone-shaped mounds surround the entrances to their burrows, keeping rainwater out and serving as lookout posts. Why has the Centers for Disease Control and Prevention banned the sale, trade, and transport of prairie dogs within the US?
James Fenimore Cooper
Back in the day
The US Guantánamo Bay Naval Base, sometimes called "GTMO" or "Gitmo," was established in Cuba in 1898. After Cuba gained its independence, the US assumed territorial control of Guantánamo Bay. Though the 1903 Cuban-American Treaty granted the US a perpetual lease of the area, the current Cuban government considers the American presence in Guantánamo to be an illegal occupation. According to the terms of the treaty, how much must the US pay each year for the use of Guantánamo Bay?
Born on a day like today
Du Bois was an early African-American civil rights leader and scholar, as well as the first African American to receive a PhD from Harvard University. He was an outspoken critic of the social inequalities that existed in the US during the early part of the 20th century, and he helped found the National Association for the Advancement of Colored People (NAACP). What led Du Bois to seek Ghanaian citizenship at the age of 95?