A swimmer is recovering after what's believed to be a river otter attacked her during a swim in Lake Tahoe on Sunday. The attack left her with dozens of stitches and injuries to her face, arms and legs. Read more: ▻ ↧ Woman attacked by otter while swimming says 'it felt like a human' A Lake Tahoe swimmer is recovering after what's believed to be a river otter, attacked her during a swim.