In "Island of the Blue Dolphins," the narrator initially refers to the otter as Otter, similar to how she named her dog Rontu. This reflects her deep connection with the animals around her and the way she observes them as significant companions during her solitude. The chosen name signifies affection and illustrates her view of the otter as a notable presence in her life.

Eventually, she decides to give the otter a more meaningful name, Mon-a-nee, which translates to "Little Boy with Large Eyes." This name highlights her emotional bond with the creature and emphasizes its unique characteristics. Through this act of naming, the narrator reinforces the importance of companionship in her challenging world, revealing her capacity for empathy and connection with nature.