Is 'IT' real? : Mermaids

A Mermaid
by John William Waterhouse

The Fisherman and the Syren
by Frederic Leighton, c. 1856–1858

Sandstone caves in Egypt hold the most
 ancient depictions of mermaids.
 Human creatures with tails,
hunting with spears and nets
 are depicted on the cave walls.

A very common mystery of the deep sea. So rare and unrealistic, that it made so many people to doubt, yet, still some believes.

'IT' is known to all as an aquatic mammal, creature that dwells the seas and oceans, living among large aquatic mammals, namely whales and dolphins (according to the movie and new evidences found today). But in ancient folklore, it is said to be a legendary aquatic creature with the upper body of a female human and the tail of a fish. It appeared in many cultures, cultures having different beliefs, having such long distances within each other, having no connections nor haven't seen each other, culture thousands of years apart, yet still believes that there are these magical creatures that still swims their oceans. How was that possible? Is 'IT' real?   

New evidences led us to believe in 'IT'. But these evidences have flaws and loopholes, leading for some to speculate. They say that the government is the blame for these, sabotaging proofs some says are real. Sabotage? Or is 'IT' just isn't real?

The mystery of 'IT' never ends, so... for you the reader... Is 'IT' real?