Throughout the book, It is generally referred to as male, usually appearing as Pennywise. The Losers come to believe It may be female after seeing it in the form of a monstrous giant spider that lays eggs.
Pennywise is a disguise, a suit that the actual thing wears, to attract kids, because “all kids love clowns” (or most, anyway). “Pennywise the clown” is a boy.
Regardless, she's one nasty beast and not alone due to the egg sack she's carrying. Unfortunately, King's imagination ran a little wilder than alluded to in the movies or earlier in the books, and the consequence of that is a pregnant Pennywise.
Kersh is Pennywise's daughter. Or at least the daughter of the man who originally had Pennywise's face. Additionally, the trailer offers a first glimpse of Bill (James McAvoy), Ben (Jay Ryan), Richie (Bill Hader), Eddie (James Ransone), and Mike (Isaiah Mustafa) back together.
Whilst most assume that Pennywise is male it's actually a female and in the story, we discover that the creature is actually pregnant and has also laid several eggs, though it is killed before it can give birth and the lair is destroyed, presumably along with it's children.
And if his victim believes him to be powerless, he will become powerless. And so the group figures out that their best bet is, essentially, to bully the bully: They mock Pennywise, telling him he isn't scary. Humiliated, Pennywise begins to shrink, transforming into an almost Benjamin Button–like, melted clown-baby.
In the novel, It's origins are nebulous. He took the form of a clown most frequently, Mr. Bob Gray or Pennywise, but his true form is an ancient eldritch entity from another universe who landed in the town that would become Derry by way of an asteroid and first awoke in 1715.
However, despite all that, there's one thing IT doesn't feature, and that's Pennywise devouring a baby. King doesn't go quite that far, although babies aren't safe from violence in the book completely, thanks to Patrick Hockstetter.
The spider-clown shrinks as the Losers hurl taunts at It, until it's tiny and weak enough that they pluck out its heart and squash it into nothingness. In the end, they defeat Pennywise by, uh, making him feel really bad about himself. It author Stephen King.
Stephen King's IT introduced readers to a one-of-a-kind creature that can take any form, the most common one being Pennywise the Dancing Clown, and as menacing as it is, this creature has one big enemy it's truly scared of: Maturin, the turtle.
According to It, when humans got scared, "all the chemicals of fear flooded the body and salted the meat". This is why he prefers to feast on children -- their fears are simple, pure, and powerful compared to the complex, pathological fears of adults. Basically, children are delicious.
Martin Morgan Pennwise is (biologically) asexual and has the ability to reproduce. Therefore even though King describes pennywise as a female further into the book, 'IT' is (technically) neither male nor female.
The 27-year cycle refers to the extended interval between waking periods of the extra-dimensional shapeshifter in the novel IT, as well as the interval between occurences of The Troubles (outbreaks of increased supernatural activity) in the television series Haven.
The Losers soon learn that this mysterious creature takes the shape of their deepest fears, which is why they start referring to this creature as “IT”, but its preferred and most common shape is Pennywise, the Dancing Clown, as clowns are a common fear among kids and adults.
They reach the conclusion that Pennywise has all of the adults under some sort of spell that prohibits them from seeing him. The adults of Derry are shown to be villainous in their own right as well. The adults of Derry are shown to be true villains of the story in the same way as Pennywise.
Pennywise does not need to scare his victims in order to kill them, he simply prefers to. The reason he does this is because it supppsedly tastes better. He says it's like "salting the meat." Pennywise feeds off the fear as much as he does the consumption of Children.
Finally, Pennywise is beaten into submission. He scurries away, utters the word "fear," and partially disintegrates before falling into the void. It's a powerful defeat of a powerful monster, and it's satisfaction enough were IT to remain a single film.
This would lead to one of the biggest Stephen King book controversies: after the Losers become lost in the sewers trying to make their way back to the surface, in IT Beverly decided to have sexual intercourse with all the boys from the Losers Club.
Almost certainly the most well-known evil clown (save for Batman¹s archnemesis, the Joker; more on him later), Pennywise is modeled after real-life serial killer John Wayne Gacy, aka Pogo the Clown, a.k.a. "The Clown Killer." Gacy was convicted of sexually assaulting and killing 33 boys in 1980; he posed as a clown ...
The novel explains that IT landed on Earth during an asteroid impact and established itself under the land Derry would be later built on, and initially preyed on indigenous tribes. From that point of view, IT/Pennywise would be billions of years old, but his clown shape wouldn't be that old.
