So do mermaids just have neck muscles of steel or what… so like they swim horizontally and, when relaxed, their necks are in position for their heads and eyes to be looking downward. So to see where they’re going they have to crane their necks up. That just seems unrealistic… no animal would evolve with that anatomy, it’s not ideal.
The options are:
1. They have shark heads
2. They have crab eyeballs that stick out of their heads
3. Their neck would connect at a different part of their head so that in a relaxed position they would be looking upwards. Then when they’re in vertical position they can crane their necks accordingly.
The first two options change how we define mermaids in general and the third is also awkward.
The last option, and my least favorite, is that mermaids aren’t real.
