They are both examples of muckraking in fiction.
Deirdre Langeland has written: 'Be careful, Kangaroo!' -- subject(s): Kangaroos, Fiction, Juvenile fiction, Animals, Infancy 'Octopus' Den, Incl. SM. and Lg. Plush Toy' 'Octopus' Den'
is not real
i think you mean what is the MAIN IDEA
A creature that is half man and half octopus is typically referred to as a "meroctopus" or "octo-man." These mythical beings are often depicted in folklore and fiction as having a human upper body and an octopus lower body.
Writing that didnt happen
The epic of Gilgamesh, which is a Babylonian fable, is considered to be the oldest surviving work of fiction.
You've either got fiction or nonfiction.
engineering, chemistry, mathematics
Most likely. There are quite a few examples: Babe, Stuart Little, The Mouse and the Motorcycle, Charlotte's Web, Gordy, and others. If that's what you mean by animal fiction, yes, it probably is. It is fiction, after all.
I actually dunno the characteristics but i know that fiction book is something that is not realistic , not true . Examples : Dragons, Witches , Fairies and more
Anastasia and Titanic are sterling examples.
non fiction books are like books that state facts. They are books about something that happened in real life or could happen.