Created by Harvard students for students everywhere, SparkNotes give you just what you need to succeed in school: Complete Plot Summary and AnalysisKey Facts About the WorkAnalysis of Major CharactersThemes, Motifs, and SymbolsExplanation of Important QuotationsAuthor’s Historical ContextSuggested Essay Topics25-Question Review QuizOryx and Crake features explanations of key themes, motifs, and symbols including: the danger of scientific advancement; voices; memory; the dominance of corporate power; blood and roses; Alex the parrot. It also includes detailed analysis of these important characters: Snowman; Oryx; Crake.