Prompt
"Generate a realistic image of a river otter (Lontra canadensis) in its natural habitat, a serene riverbank at dusk. The otter, with its dense, water-repellent brown and grayish fur, long and muscular tail, and webbed feet, is playfully swimming in the calm water, surrounded by lush vegetation. Capture the otter's excellent swimming ability and playful behavior, conveying a sense of joy and freedom. The style should be photorealistic, with attention to detail and texture, to showcase the beauty of this carnivorous mammal, a top predator in aquatic ecosystems."