Head further out in the tank to the River Adycha area. Rivers in Arctic Siberia are very meandering, with lots of twists and turns. So at these turns the river current slams into one of the banks and is constantly eroding it, bringing bones and tusks closer to the surface. Sometimes they see a bone protruding in these areas and start searching for nearby tusks, or sometimes they just search in a spot that looks promising. They search using a water pump to blast away the earth from the river bed, creating tunnels in the bank to expose the tusks. Once the tusks are exposed they use more delicate tools such as chisels to excavate it.They sometimes also trawl the river bed with a kind of huge rake attached to the boat. We will spend these days travelling with them, watching the tusk hunting and extraction process and if so desired, accompanying them on fishing / hunting trips.