🧜Realistic mermaids would be mammals with gills and lungs, webbed hands, bluish-gray skin, and minimal hair.
🔊Underwater, mermaids' voices would be extremely loud and potentially harmful to humans.
🧊To survive in cold water, mermaids would have blubber covering their bodies.
🌊Mermaids' eyes would be bigger and with larger pupils to adjust to underwater conditions.
🚫Long hair, as depicted in Disney movies, would create drag and hinder swimming abilities for mermaids.