I don't think Mermaids are a myth. They are water creatures just like fishes with head , upper body and the tail of a fish
I'm on the fence.  They seem like they could be real.
You are on the fence because  they are used in stories  in alot cultures worldwide, including the Near East, Europe, Africa and Asia. But they have been cases of Mermaid floating around shores and fisherman nets. Check youtube
I will have to look at that.  So, if there are mermaids, are there also mermen?
Yes, although no strong widely accepted evidence. But there have really been sightings, there are examples from Isreal and Zimbabwe
That's interesting.  What do you think we will see first, great white sharks mating, or mermaids and mermen mating?
History has it that Christopher Columbus saw some and yes. If there are females, there must be male
Wow, Christopher Columbus saw some?  You have just blown my mind.