Literature genres differ across cultures for a number of reasons, including:

• History: The history of a culture can influence the development of its literature. For example, cultures with a long oral tradition may be more likely to develop genres such as epics and folktales.
• Religion: Religion can also influence the development of literature. For example, cultures with a strong religious tradition may be more likely to develop genres such as myths and legends.
• Geography: The geography of a culture can also influence the development of its literature. For example, cultures that live in harsh environments may be more likely to develop genres such as adventure stories.
• Social structure: The social structure of a culture can also influence the development of its literature. For example, cultures with a strong caste system may be more likely to develop genres such as romances.
• Language: The language of a culture can also influence the development of its literature. For example, cultures with a rich vocabulary may be more likely to develop genres such as poetry.
• Literary movements: Literary movements can also influence the development of literature. For example, the Romantic movement in Europe led to the development of genres such as the novel and the short story.

In addition to these factors, the individual creativity of authors can also play a role in the development of literature genres. However, the factors mentioned above are some of the most common reasons why literature genres differ across cultures.

Here are some examples of how literature genres differ across cultures:

• Epics: Epics are long narrative poems that tell the story of a hero or a group of heroes. Epics are common in many cultures, but they often take on different forms in different cultures. For example, the Japanese epic The Tale of Genji is a very different work from the Greek epic The Odyssey.
• Folktales: Folktales are short stories that are passed down orally from generation to generation. Folktales are common in many cultures, but they often have different themes and motifs in different cultures. For example, the African folktale The Tortoise and the Hare is a very different story from the European folktale The Three Little Pigs.
• Myths: Myths are stories that explain the origins of the world or of certain natural phenomena. Myths are common in many cultures, but they often have different gods and goddesses in different cultures. For example, the Greek myth of Prometheus is a very different story from the Egyptian myth of Osiris.
• Legends: Legends are stories that are based on real events or people, but they have been embellished over time. Legends are common in many cultures, but they often have different details in different cultures. For example, the American legend of Paul Bunyan is a very different story from the British legend of Robin Hood.
• Romances: Romances are stories about love and adventure. Romances are common in many cultures, but they often have different settings and characters in different cultures. For example, the Chinese romance The Dream of the Red Chamber is a very different story from the French romance The Hunchback of Notre Dame.

These are just a few examples of how literature genres differ across cultures. The specific genres that are popular in a particular culture will vary depending on the factors mentioned above.