Renowned as some of the most fun and fascinating animals in the sea, sea otters are seen in this wonderful picture exactly in their joyful attitude. These cute animals interact most sensibly when they are not looking for food or floating gently on their backs. When photographer Andy Harris caught this priceless moment between two sea otters involved in what seems to be an intense tickle fight, he hit gold. With their whiskers twitching and paws entwined in what looks to be the most fun roughhousing session ever seen, the picture captures their genuine delight and playfulness. Their posture makes us think of youngsters at play—genuine delight shown on their faces. This picture not only shows their social behaviour but also emphasises the fundamental fact that play is essential for many species, providing both entertainment value and means of strengthening social ties.