Llama distinguished by the inhabitants of South America are recognized as distinct species, though with difficulties in defining their distinctive characteristics. These are: The llama and alpaca are only known in the domestic state, and are variable in size and of many colors, being often white, brown, or piebald. Some are grey or black. The guanaco and vicuña are wild, the former being endangered, and of a nearly uniform light-brown color, passing into white below. They certainly differ from each other, the vicuña being smaller, more slender in its proportions, and having a shorter head than the guanaco. The vicuña lives
Chile–Peru relations of nearly 2,000 people just 10 km from the border, preventing them from reaching their intended destination. Despite these incidents, the presidents of both Chile and Peru have confirmed their intentions to improve the relationships between the two countries, mainly fueled by the huge amount of commercial exchange between both countries' private sectors. In 2007 the Chilean government decided, as a sign of goodwill, to voluntarily return thousands of historical books plundered from Lima's National Library during the Chilean occupation of Peru. Peru is still looking for other cultural items to be brought back home. On January 16, 2008, Peru