A circa 1783 self-portrait of the French painter Joseph Ducreux (1735–1802) in the middle of a large yawn. Ducreux attempted to break free from the constraints of traditional portraiture in his depictions of subjects; another self-portrait, painted some ten years later, depicts him pointing at the viewer and laughing.Painting: Joseph Ducreux
A view of the Wadi Bani Khalid from above. This wadi, located some 203 kilometres (126 mi) from Muscat, Oman, is the best-known of the Sharqiyah region. Its stream maintains a constant flow of water throughout the year, and large pools of water and boulders are scattered along the course of the wadi.Photograph: Richard Bartz
Helmut Flieg (1913–2001) was a German writer best-known by the pseudonym Stefan Heym. He lived in the United States (or served in its army abroad) between 1935 and 1952, before moving back to his native Germany. He published works in English and German at home and abroad, including Nazis in the U.S.A. (1938), Goldsborough (1953), and Five Days in June (1977).Photograph: Marcel Antonisse / Anefo
Stanislaus of Szczepanów (1030–1079) was a Bishop of Kraków known chiefly for having been martyred by the King Bolesław II the Generous of Poland. One of the first native Polish bishops, Stanislaus came into conflict with King Bolesław several times. In one case, the bishop is said to have resurrected a dead man so that he could bear witness regarding a sale of land. Another conflict, whose cause is disputed, led to Stanislaus excommunicating the King. In response, Bolesław killed the bishop and then had his body cut into pieces.Illustration: Stanisław Samostrzelnik
The mandarin duck (Aix galericulata) is a perching duck species endemic to East Asia but since introduced to Europe and the United States. It is medium-sized, at 41–49 cm (16–19 in) long with a 65–75 cm (26–30 in) wingspan. The species mainly eats plants and seeds, especially beechmast. It will also add snails, insects and small fish to its diet.