Tanzania auctions 3,580 kg of hippo teeth

An officer guards beside piles of hippo teeth at the headquarters of the Ministry of Natural Resources and Tourism in Dar es Salaam, Tanzania, on Jan. 29, 2018. A Tanzanian firm on Monday bought 12,467 pieces of hippopotamus teeth weighing 3,580.29 kg at an auction conducted by Tanzania Wildlife Authority (TAWA). (Xinhua)