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Isopoda is an order of crustaceans that includes woodlice and their relatives. Most isopods are small greyish or whitish animals with rigid, segmented exoskeletons. They have two pairs of antennae, seven pairs of jointed limbs on the thorax, and five pairs of branching appendages on the abdomen for respiration. Aquatic species live in marine or freshwater habitats, mostly on the bottom, but some can swim for a short distance. Terrestrial forms tend to be found in cool, moist places. Around 4,500 species dwell in salt water, 500 in fresh water and another 5,000 on land. Some isopods eat dead or decaying plant and animal matter, others are grazers or strain food particles from the water around them, a few are predators, and some are parasitic, mostly on fish. Some species are able to roll themselves into a ball to conserve moisture or as a defence mechanism. The fossil record of isopods dates back to the Carboniferous period (in the Pennsylvanian epoch), at least 300 million years ago, when they lived in shallow seas. (Full article...)

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Former coat of arms of South Africa
Former coat of arms of South Africa

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Shimon Peres, former Israeli President and Prime Minister
Shimon Peres

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September 29: Michaelmas

Goethe c. 1775
Goethe c. 1775

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Les Invalides

Les Invalides is a complex of buildings in the 7th arrondissement of Paris, France, containing museums and monuments relating to the military history of France, as well as a hospital and a retirement home for war veterans. The buildings house the Musée de l'Armée, the Musée des Plans-Reliefs, and the Musée d'Histoire Contemporaine. It is also home to the Dôme des Invalides, a large church where some of France's war heroes, including Napoleon Bonaparte, are buried.

Photograph: DXR

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