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Wasp spider. Argiope bruennichi. Orb-weaver spider. Spiders. Arachnid. Cobweb. Spider web. Spider's web. Spider silk. Black and yellow striped wasp spider spinning a web.

Do We Really Swallow Spiders in Our Sleep?

Statue of Nostradamus

Nostradamus and His Prophecies

Close up of praying mantis walking on stone ground against a blurred background in Japan

6 Animals That Eat Their Mates

airplane in flight (plane, aircraft, flying)

7 Puzzling Plane Disappearances

Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

10 Famous Artworks by Leonardo da Vinci

pulmonary veins and arteries, circulation, cardiovascular system, human anatomy, (Netter replacement project - SSC)

13 Questions About How the Human Body Works Answered

Normandy Invasion: Omaha Beach. World War II. D-Day. Infographic. SPOTLIGHT VERSION

Facts and Figures About the Landings on Omaha Beach During the Normandy Invasion on June 6, 1944

post office

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postal systems

In postal system
…to establish a network of post offices extending into the remotest areas. Such a network of offices, staffed by agents of the state, provides an efficient banking service in areas in which it would be uneconomic for a commercial or state bank to establish a branch office. Many governments also…
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