Have you ever sensed that your body reacts differently at different times of the day? NOVA examines the best and worsetimes for work, good times for sex drives and your body's most reactive time of day for alcohol consumption.

Benjamin is a healthy, normal baby, whom we meet at birth and whose first year of life provides the backbone of this revealing NOVA about early child development.

If you were a dinosaur scientist, what would you do with a pile of fossil bones? How would you even start to put the giant jigsaw puzzle together, never mind discover anything about how these dinosaurs lived? NOVA explores the incredible world of the dinosaur scientist.