baby's activity

Males have more muscle mass then females do. Maybe that is why they eat more and are more energetic.

It is normal that males are more active than female babies. Males also eat more. Consumes more milk and more demanding for whatever, mothers are at a loss sometimes. However, it will be a joy taking care of them. I love babies. This only shows that by nature, it should be the men who are more agressive than women. It is only the needs of the times which have caused the women to take a more agressive stance in the recent years.

I don't think it has to do with gender. I think it's more about the parents' energies and their environment.