Yakut fishermen found a mammoth tusk in the river, it probably appeared there from the thawed permafrost. The tusk weighs about 50 kg. https://t.co/j8V41Jf79J https://video.twimg.com/ext_tw_video/1846681180680138752/pu/vid/avc1/264x480/6Xu4SB3PefUJnQmz.mp4?tag=12