Early this morning, I was walking along the beach when I suddenly noticed this on the shore

Early this morning, I was walking along the beach when I noticed a dark shape resting on the wet sand. From a distance, it looked like an ordinary piece of driftwood carried in by the tide. The beach was almost empty, the air was still, and nothing about the morning had prepared me to find something so strange.
I kept walking toward it because one detail did not fit. What I had taken for a branch appeared to curve like a tail. The closer I came, the less sense the shape made. It was longer than I was tall and covered in smooth, almost rubbery skin that caught the pale morning light.
I stopped several steps away and tried to understand what I was seeing before moving any closer. There were no obvious footprints around it, no trail in the sand, and no clear sign showing how it had arrived. I could not see blood or a wound. It did not look rotten or broken apart. It simply looked terribly out of place.
The tail was the most confusing part. It curved in a way I had never seen on a fish or a familiar marine mammal. From one angle, it resembled a twisted fin. From another, it looked as if the body changed shape near the end. Every time I thought I recognized it, another feature made me doubt myself.
I wondered whether the tide had carried it in during the night. The damp line left by the retreating water ran close to the body, but the sand around it offered no easy explanation. If waves had pushed something that large onto the shore, I expected a deeper groove or scattered debris. Instead, the scene felt unusually undisturbed.
The size made me cautious. Even if the animal appeared motionless, I did not know whether it was dead, exhausted, sleeping, or injured. Approaching unknown wildlife can put both the person and the animal at risk. I stayed back, watched for breathing or movement, and resisted the impulse to touch the smooth surface.
At moments the broad body reminded me of a seal, especially when I considered the heavy shape and the way it rested on the sand. Yet the unfamiliar angle of the tail and the lack of a clear view kept me uncertain. I had seen seals in photographs and at a distance, but never anything that looked exactly like this.
The longer I stood there, the more the ordinary sounds of the beach seemed to disappear. I could hear small waves breaking and birds farther down the shore, but my attention remained fixed on the animal. Morning walkers occasionally appeared in the distance, and I found myself hoping someone with more experience would recognize it immediately.
I took photographs from a safe distance so the shape, skin, and tail could be examined without disturbing it. A clear image could help a wildlife rescue group or local authority decide what kind of response was needed. If the animal was alive, trained rescuers would know how to keep people away and assess its condition. If it was dead, officials could document and remove it safely.
What began as a peaceful walk had turned into a mystery at the edge of the water. I had expected shells, seaweed, and driftwood, not a massive smooth skinned animal whose identity I could not settle. I remained by the shore, studying the details and waiting for someone who might know what the tide had left behind. Until an expert could identify it, distance and patient observation seemed far wiser than a confident guess alone.