Dinosaurs: Could a dinosaur scratch his own itch?
Dinosaurs: Was Antarctica once warm and did dinosaurs live there?
Dinosaurs:  Could dinosaurs swim?
Dinosaurs:  I heard from my science teacher that if scientists find the blood sample of a dinosaur they can bring back dinosaurs to life, is this true?
Fingers: Why do we have five fingers?
Intelligence, species: How can one species measure the intelligence of another? Are trees smarter than humans?
Man:  How old is man?
Species: what makes sex work? What enables a male and a female to produce offspring?
Human skin color: why did human skin color evolved to lighter shades?
 

Cloning:  We do not understand cloning.  How does it work?  How is it done? Can you explain it?
Domestication:  Since humans domesticated dogs, causing actual genetic changes in the canines, has there been a reciprocal genetic change in humans making us more compatible with dogs?  In other words, have dogs domesticated humans as humans domesticated them?
Indian corn: why the colors?
Digesting genes: What happens to genes we eat?
GM food: On my table everyday, there are genetically modified rice, vegetables, and so on. Who knows if it is good or not for us?
No-father fertilization: Is it possible to take the chromosomes from one female egg and inject them into another female egg so they attach and actually form a fertilized egg?
Pets:  Are genetic pets real?