This amazing time lapse video of 9 month old Baby Edward shows his exploration and activity. (turn off the music if it drives your brain crazy as it did to me)
Neurobiologists have found that babies at this age are growing and remodeling millions of synaptic connections in the brain. This is the peak of this growth and it is called "synapse exuberance".
The brain is constantly remodeling it's connections throughout life but watching Baby Edward at 9 months do his thing is truly eye-opening.
Here he is up close: