Changos were experts at exploiting the resources of the sea. Each group specialised in a particular type of fish, including tuna, conger eels, mullet, dart fish, mackerel and octopus. Rafts used for fishing developed from primitive reed constructions to craft made from three wooden planks, and later to seal skins fastened to wooden frames. Fish were caught using nets, hooks and harpoons. The capture of seals was of crucial importance to the Chango way of life, with every part of the animal having its uses. The meat, fat and bones were used for food and tools, the skins were used to make rafts and the intestines to make fishing equipment. As well as seal skins, the Changos used vicuña wool, feathers, bird skins, shells and the bones and teeth of sea creatures as materials to make practical and decorative items such as clothing, blankets, tools, cutlery and jewellery. They also made and painted ceramic utensils. Despite their geographical isolation, the Changos traded with inland tribes, exchanging shellfish, dried fish, animal hide, guano, fat and shells for wool, fruit, maize and coca. Chango cave paintings include images of men hunting and fishing and sea creatures such as seals, turtles and whales. See also Indigenous peoples in Chile Atacama desert Chinchorro culture External links References Indigenous peoples of the Southern Cone Pre-Columbian cultures Indigenous peoples of the Americas Indigenous peoples of the Andes Indigenous peoples in Chile Atacama Desert Antofagasta Region Indigenous peoples in Peru