I watched The Discovery Channel with fascination when they aired Mermaids: The Body Found. The source is credible: NOAA, the National Oceanic and Atmospheric Administration. Made up of scientists and experts on oceanic life, they make a compelling argument that a group of humans evolved into creatures that live in the water.
They picked up audio that is not known to belong to any marine creature. It reminded me of the sirens that sailors spoke about as they crossed the vast oceans.
They also have video of one such creature found on the beach. Its body was immediately removed by the Department of the Navy:
They have DNA evidence that creatures found in the ocean have both human DNA and marine DNA.
So, what do you think? Watch the videos at this link and let me know: do you believe in mermaids?