A camel train is a group of strong, tall animals called camels who walk together in a long line to carry heavy things like food, clothes, and other supplies to different places. Imagine a group of friends walking together in a single file, but instead of walking on two legs like us, camels walk on four legs and have big humps on their backs which can store a lot of stuff, just like big bags.
Camel trains were used a long time ago before cars and trucks were invented. People in hot, dry places like deserts and mountains used camel trains to transport goods such as spices, fabrics, and precious metals across great distances, sometimes for days or even weeks.
Camels are really special because they can live without water for a long time and can withstand hot weather. They are really strong too, and can carry heavy loads of up to 500 pounds on their humps. Imagine carrying a 500-pound backpack on your shoulders, that would be quite difficult for humans, but camels can manage it like it's no big deal!
In summary, a camel train is a group of camels that walk together in a line to transport heavy things across long distances in hot, dry areas. They are special animals that can go for a long time without water, and are really strong and reliable.