Alpacas with thick hair are seen at Hefei Wildlife Park in Hefei, capital of east China's Anhui province, June 17, 2013. Staff members shaved for the four alpacas from south America on Monday to help them survive from high temperature in summer. (Xinhua/Du Yu)

Alpacas with thick hair are seen at Hefei Wildlife Park in Hefei, capital of east China's Anhui province, June 17, 2013. Staff members shaved for the four alpacas from south America on Monday to help them survive from high temperature in summer. (Xinhua/Du Yu)