more exlpanation

"In brief, yes they are all merfolk, but I think we need to get cleaned up and dressed before I explain more, I am tired of being naked." You clean up and dress. You go downstairs and sit on the sofa your mum has a cup of tea and you get a glass of water (you are not fond of tea).

"First off; yes, all my relatives are merfolk. that is why they live down by the beach. Unlike me and your uncle, the rest of the family still live in the sea most of the time. They also have houses on land that they visit about once a week and when we are visiting they stay in them until we leave. We Merfolk discovered the wonders of the internet and other electronic goods a few decades ago and most live dual lives to enjoy the human lifestyle.

Secondly, As I said, my younger brother, your uncle, is a child of **** between my mum and my older brother. He has also given up living close to the shore to live with his wife who is also human. He has had more success passing on the mer gene as both his daughters, your cousins are able to transform only his son is not, nor does he have the siren genes."

Also, I forgot to mention about my friend, and centaurs in general, are an Equus species, not a human species despite being to take on human-like form. Faries are not related to any known genus or family. Fauns are another hominem. Dragons are the last line of therapsids that did not evolve into mammals. This is why some species show more mammal-like traits and some more reptile-like traits and all show traits of both." Your mum concluded her exposition and finished her tea.