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Humans would also have derived enormous benefit from the dogs associated with their camps. For instance, dogs would have improved sanitation by cleaning up food scraps. Dogs may have provided warmth, as referred to in the Australian Aboriginal expression "three dog night" (an exceptionally cold night), and they would have alerted the camp to the presence of predators or strangers, using their acute hearing to provide an early warning.

How could dogs have helped with sanitation issues in camps?
Answer: cleaning up food scraps
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The Bibliothèque nationale de France (BnF) operates public libraries in Paris, among them the François Mitterrand Library, Richelieu Library, Louvois, Opéra Library, and Arsenal Library. There are three public libraries in the 4th arrondissement. The Forney Library, in the Marais district, is dedicated to the decorative arts; the Arsenal Library occupies a former military building, and has a large collection on French literature; and the Bibliothèque historique de la ville de Paris, also in Le Marais, contains the Paris historical research service. The Sainte-Geneviève Library is in 5th arrondissement; designed by Henri Labrouste and built in the mid-1800s, it contains a rare book and manuscript division. Bibliothèque Mazarine, in the 6th arrondissement, is the oldest public library in France. The Médiathèque Musicale Mahler in the 8th arrondissement opened in 1986 and contains collections related to music. The François Mitterrand Library (nicknamed Très Grande Bibliothèque) in the 13th arrondissement was completed in 1994 to a design of Dominique Perrault and contains four glass towers.

Who operates the public libraries in Paris?
Answer: Bibliothèque nationale de France
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During the 16th and 17th centuries slave traders began to raid the region as part of the expansion of the Saharan and Nile River slave routes. Their captives were slaved and shipped to the Mediterranean coast, Europe, Arabia, the Western Hemisphere, or to the slave ports and factories along the West and North Africa or South the Ubanqui and Congo rivers. In the mid 19th century, the Bobangi people became major slave traders and sold their captives to the Americas using the Ubangi river to reach the coast. During the 18th century Bandia-Nzakara peoples established the Bangassou Kingdom along the Ubangi River.

Who did the Bobangi sell slave to?
Answer:
the Americas