Some parts of the brain are still developing through adolescence and it would seem rewires or reorganizes itself at this age. Could this explain some of teenagers' unique behavioural traits?

Prefrontal cortex
The prefrontal cortex is the home of "executive" functioning, high-level thinking processes that, among other things, allow us to develop detailed plans, execute them, and block irrelevant actions.
This area undergoes a bulking up between the ages of 10 and 12, followed by a dramatic decline.
So…if you don't use these skills you lose these skills! If the adolescent's brain is still learning these skills, this might help explain why teenagers can sometimes seem so disorganized, irrational, poor at assessing risk and can't foresee consequences.

Corpus callosum
These are nerve fibres linking the left and right sides of the brain. The parts thought to be involved in language learning undergo high growth rates before and during puberty, but this growth then slows. This might help explain why the ability to learn new languages declines rapidly after the age of 12, and certainly is involved in learning writing skills.

Pineal gland
The pineal gland produces the hormone melatonin, levels of which rise in the evening, signalling to the body that it is time to sleep.
During adolescence melatonin peaks later in the day than in children or adults. This could be why teenagers tend to be so fond of late nights and morning lie-ins. It is possible teenagers' 8 a.m. school starts may be a mistake. They may take less in for the first two lessons of school as they are still in biological 'sleep time'!

Right ventral striatum
This area of the brain is thought to be involved in motivating reward- seeking behaviour.
A study last year showed that teenagers had less activity than adults in this part of the brain during a reward-based gambling game. The researchers speculate that teens may be driven to risky but potentially high-reward behaviours such as shoplifting,and drug-taking because this area is under-active.