What do merpeople look like?
>What type of sea creatures do their non-human halves mimic?
>Do they have hair?
>Is the species sexually dimorphic? Meaning, are there sperm-producing and egg-producing types, and are they visibly different from one another?
>Are they meatier/bulkier or are they more streamlined?
>>Does this depend on their sea creature type?
>>On their sex?
>>On their ancestry?
>>On the climate they live in?
>How large are they compared to other species on land and in the sea?
>What color is their blood?

What do they eat?
>Sea creatures?
>Is their prey generally larger or smaller than themselves?
>>Do they hunt alone, or in groups?

How fast can they swim?

Where on the food chain are merpeople located?
>This will affect where they nest and their likeliness to attack unprovoked as well.

Are they warm-blooded or cold blooded?

Do they breath using gills or lungs? Remember, if they use gills only, they are fully aquatic. If they breath using lungs, how long can they stay underwater before they need to resurface?

What kind of environment do they live in?
>What water temperature range do they survive best in?
>>Does this depend on their non-human half?
>What range of depths do they stay in?
>>Near the surface?
>>The deep sea? It is highly unlikely that merpeople that aren’t fully aquatic would be able to get to, or survive at, these depths.

Do they attack people?
>Do they do so in self defense?
>Do they see people as food?
>Are they angry with humans?

How do they communicate?
>Are they capable of mimicking human speech?
>>If they are full aquatic, the answer should be, “no,” in case you’re unsure.

What do they do all day?

How was the first one made?
>If your answer is “evolution”, you’ll need to think very hard on the “how” and the “why” these traits would have been selected for, considering it goes with traits that help the creatures survive and reproduce.

Where do they nest?
>If they breath with lungs, they will need a place out of water where they can safely go without threat of being hunted or drowning, as they won’t move well on land.
>If they breath with gills, they will need a safe place to cozy up without having to worry about being beached, eaten, or pulled away by the tides and currents.

Are there any illnesses that merpeople can get?
Are there any illnesses merpeople can catch from humans?
Are there any illnesses that merpeople can pass to other species?

How do merpeople reproduce?
>Is it done with direct contact, like humans, or without direct contact, like fish?

Do merpeople have a leader?
Can merpeople be considered citizens of land countries?
Would eating one count as seafood or cannibalism?

What are some myths and misconceptions the non-merpeople population has about the merpeople population?
What are some myths and misconceptions the merpeople have about non-merpeople?

Are merpeople parts used in any folk medicines (regardless of their effectiveness)?
>Is there a poaching problem because of this?
>Do non-merpeople count the killing of merpeople as poaching/hunting or as murder?