These frogs belong to the family Dendrobatidae, a group of small, diurnal, often brightly colored frogs native to Central and South America. These frogs secrete poisonous alkaloids through their skin, which ranges in color from bright orange to black and blue. Most poison frogs are not toxic to humans or animals, but a few secrete a potent neurotoxin that can kill within minutes. Why is it that poison frogs captured from the wild and fed a typical captive diet lose their toxicity?
Back in the day
After Great Britain and the US withdrew their pledges of financial support to help Egypt build the Aswan High Dam, Egyptian President Gamal Abdal Nasser nationalized the Suez Canal. The move angered both Britain and France, countries that had direct financial stakes in the canal. A joint invasion of Egypt ensued, but the US forced a settlement stipulating the withdrawal of foreign troops in exchange for an open canal. What was "Operation Musketeer" and why was it not entirely successful?
Born on a day like today
Goebbels was the infamous Minister of Propaganda during the Nazi regime of Adolf Hitler. He was responsible for using mass communication to indoctrinate the German people into a culture of Nazism, racism, and militarism. "The Goebbels technique" is the name given to his policy of repeating a lie until it is taken to be the truth. After Germany's defeat, Goebbels killed himself and his family. What was the name of the novel he tried to publish as a journalist?