Final answer:
Realism plays do not typically include the latest scientific discoveries; instead, they focus on accurate depictions of everyday life, nuanced characters, and believable struggles.
Step-by-step explanation:
The characteristic that is NOT a feature of Realism plays is the inclusion of the latest scientific discoveries. Realism in theatre focuses on presenting life as it truly is, often depicting everyday subjects and situations in contemporary settings, and emphasizing accuracy in the portrayal of characters and settings.
Realism plays reject Romantic features like emotionalism and idealism, eschew larger-than-life heroes and villains in favor of more nuanced characters, often from the middle class, and strive to depict believable struggles and conversations among characters—using dialogue that is typical of the characters' social situations.