Leopard seals can weigh up to 590kg (1,300 pounds) and can measure up to 3.8m (10 feet). Leopard seals are the only seal species known to actively prey on other seals, and their only predator is the orca. Have you seen the amazing up close interaction between photographer @paulnicklen and a leopard seal in Antarctica? A wonderful unique and humbling story of an intelligent being worried for a new species in its waters. That @natgeo footage was from 2006. In 2017 @paulnicklen and @mitty went back