Stuffed Sea Otters are in stock and ready to ship. For more information on a stuffed sea otter, just click on its image. Our stuffed sea otters come with a 100% satisfaction guarantee. There are thirteen species of otters in the world. Sea otter is the most common species of otter. Sea otters can get over five feet long, including their tail, and weigh 100 pounds. Our stuffed otters are very cute and will be happy just sitting on your lap.