Title: Napoleon.
Question:  DNA from Alexandre Colonna-Walewski's descendants has been used to confirm what attribute of Napoleon's?

Title: Hokkien.
Question: What is the pattern used un Taiwanese tones determined by?

Title: Adolescence.
Question: What is the term for a culture that discourages sexual activity in unmarried adolescents?

Title: Bird migration.
Question:
What do diurnal birds produce as opposed to non migratory species?