WARNING: The video may be graphic for some. A Lake Tahoe swimmer is recovering after what's believed to be a river otter attacked her during a swim along the East Shore of the lake on Sunday. After the animal pulled her under, the woman shared her surprising attack on social media; she is now recovering with 38 stitches from the incident. For more information, click the link below https://t.co/MqDIWdx1QZ