Mermaids (The Deep)

Mermaids are a species that are half animal and half fish. Females are referred to as mermaids, while males are referred to as mermen.

They are featured most heavily in The Deep and The Deep: Legends of the Sea.

Background/Physiology
The Mermaids were once anthropomorphic animals living in the kingdom of Atlantis with advented science and magic. One day, a prophetic foretold of an earthquake sinking the city into the sea. In advece, the scientists and magicians create an spell that can last an eternity: the ability to become part-fish. When the earthquake occurred and the city snaked to the sea, the spell is actived. Some of the Mermaids braches off to other sunken cites that over the years.