LORE of the SIRENS
Often the first thing that comes to mind when the word Siren is spoken is their alluring voice that's said to bring Viking ships to their demise. Sirens were always depicted as beautiful women or men, able to breathe underwater with fish like scales and tails. It's said that they'd lure anything to the edge of the water to drag it under and drown it for them to consume.

TRAITS of the SIREN
Sirens by nature do have alluring and beautiful voices that can put anyone in a trance. Most are known to have fish tails and swim like one itself, but recently it's been discovered by few that Sirens can walk among the land dwelling by simply drying off. Of course it can be painful if done too often. When one gets water on them, they turn back into a fish tailed Siren. 
*Sirens do not have to but can take after a certain kind of fish or cetaceans.

REPRODUCTION of the SIREN
Siren x Other Species have a 40% chance of passing on the Siren bloodline, and a 20% chance of having a hybrid. 
Siren females can only carry up to two children at a time.