Mermaids: The New Evidence is a rehashing of the mockumentary Mermaids: The Body found…
Both Mermaids: The New Evidence and Mermaids: The Body Found are mockumentaries. They are fake documentaries that are made to look real.
There are no mermaids and there is no new evidence.
Animal Planet is puling your leg.
In fact you can find all the actors on IMDB and as mentioned previously on Pink Ink the government agency mentioned in the show has issued a statement clarifying that it had no involvement in the mockumentary.
I am not going to go further into depth on this one because we are literally talking about mermaids.
Common sense should be your guiding star on this one.