Vikramshila Gangetic Dolphin Sanctuary is the abode of Susu, a rare species of Dolphins Satyam Kumar Bihar There are total 2,12,000 marine species known to us. However, it is estimated that the total figure of these species on earth comes between 1.4 - 1.6 million (According to Bouchet P, 2006). Each of them is uniq...
