CHIANG MAI - FEB 27 2006: Asian elephants have rather poor vision capable of seeing clearly only at very short distances - up to about 10 metres. In wooded areas, elephants can lose sight of each other, so they emit rumbling purrs in order to keep in touch. Some of the sounds made by elephants can be heard by other elephants from over 19km away. Asian elephants - strong, social, and intelligent - have been trained for thousands of years for use in transportation, labor, and ritual. In Thailand, Elephants are of immense cultural importance, but their numbers are shockingly plummeting. In 1905, there were over 100,000 elephants in this land - now they are estimated at less than 5,000, of which barely half are in the wild. (Photo by Logan Mock-Bunting)