LOOK what I’ve found!"George Schaller exclaimed as he displayed a black caterpillar squirming on his palm.This particular grub was the eminent American wildlife biologist’s most impressive discovery on his trip to the Qinghai-Tibet Plateau.On the way from Yushu to Zadoi the drivers transporting Schaller’s team stopped at a section of road that was writhing with these caterpillars.They got out,placed the larvae carefully in buckets and