Halloween, time to choose

Both in nature and in our homes, spider webs seem to hang on just a few fragile threads.... And yet, on closer inspection, they are found to be devilishly solid and sophisticated! How and why how do spiders produce them? What applications can we expect to develop from them? Arachnologist Christine Rollard gives us the keys to understanding a highly resourceful species and Hervé Elettro describes the physical and mechanical properties of spider threads.

A team of historians and archaeologists has finally found written sources that will help them write a forgotten period of Ethiopia's history. What is unexpected is that these islamic tombstones are being uncovered in the heart of what was the Christian Kingdom of medieval Ethiopia...

In Atlit, northern Israel, a team of archaeologists went to explore a Christian cemetery dating from the 13th century. The first excavations carried out by the British in 1934 led to the discovery of more than 2,000 tombs, providing clues to the current layout of the skeletons. Today, archaeologists are trying to restore the original cemetery in its conditions before the English changed them. Based on the metal objects and ceramics found, archaeologists will be able to learn more about these…

In Guadeloupe, the area of the national park located at Basse Terre is the habitat of more than 150 species of spiders, many of them little known. After a presentation of some of these spiders, a recently discovered species, the La Soufrière mygale (Holothele sulfurensis) is observed closely, using various techniques such as "macrocinema" and slow-motion or speeded-up film.