A camel (from Latin: camelus and ‹See Tfd›Greek: κάμηλος (kamēlos) from Ancient Semitic: gāmāl) is an even-toed ungulate in the genusCamelus that bears distinctive fatty deposits known as "humps" on its back. Camels have long been domesticated and, as livestock, they provide food (camel milk and meat) and textiles (fiber and felt from camel hair). Camels are working animals especially suited to their desert habitat and are a vital means of transport for passengers and cargo. There are three surviving species of camel. The one-humped dromedary makes up 94% of the world's camel population, and the two-humped Bactrian camel makes up 6%. The wild Bactrian camel is a distinct species that is not ancestral to the domestic Bactrian camel, and is now critically endangered, with fewer than 1,000 individuals.
The word camel is also used informally in a wider sense, where the more correct term is "camelid", to include all seven species of the family Camelidae: the true camels (the above three species), along with the "New World" camelids: the llama, the alpaca, the guanaco, and the vicuña, which belong to the separate tribe Lamini. Camelids originated in North America during the Eocene, with the ancestor of modern camels, Paracamelus, migrating across the Bering land bridge into Asia during the late Miocene, around 6 million years ago. (Full article...)
Image 14German soldiers in a railway car on the way to the front in August 1914. The message on the car reads Von München über Metz nach Paris ("From Munich via Metz to Paris"). (from Rail transport)
Image 23According to Eurostat and the European Railway Agency, the fatality risk for passengers and occupants on European railways is 28 times lower when compared with car usage (based on data by EU-27 member nations, 2008–2010). (from Rail transport)
Image 24Swiss & German co-production: world's first functional diesel–electric railcar 1914 (from Rail transport)
Image 25Passengers waiting to board a tube train on the London Underground in the early 1900s (sketch by unknown artist)
Image 26San Diego Trolley over Interstate 8 (from Road transport)
Image 27Bridges, such as Golden Gate Bridge, allow roads and railways to cross bodies of water. (from Transport)
Image 28An ambulance from World War I (from Transport)
Image 29A 16th-century minecart, an early example of unpowered rail transport (from Rail transport)
Image 56A cast iron fishbelly edge rail manufactured by Outram at the Butterley Company for the Cromford and High Peak Railway in 1831; these are smooth edge rails for wheels with flanges. (from Rail transport)
Image 57Lilienthal in mid-flight, Berlin c. 1895 (from Aviation)
Image 58Customized motorcycle to maximize load capacity. Mobility is important for motorcycles, which are primarily used for transporting light cargo in urban areas. (from Transport)
Image 59The Lockheed SR-71 remains unsurpassed in many areas of performance. (from Aviation)
Image 60Bardon Hill box in England (seen here in 2009) is a Midland Railway box dating from 1899, although the original mechanical lever frame has been replaced by electrical switches. (from Rail transport)
Image 61Interior view of a high-speed bullet train, manufactured in China (from Rail transport)
Image 68First powered and controlled flight by the Wright brothers, December 17, 1903 (from Aviation)
Image 69The Great North Road near High gate on the approach to London before turnpiking. The highway was deeply rutted and spread onto adjoining land. (from Road transport)
... that a section of Mississippi Highway 489 was designated as the Jason Boyd Memorial Highway to commemorate the MDOT superintendent who was killed while removing debris from the road?
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