What is a Rat's brain composed of?

[handbanana]

Is it similar to the humans' brain?

what are some adaptations in the rat's nervous system that allows it to survive better?

Thanks!

[MrMistery]

not very similar with a human brain. the only thing I know about a rat's brain is that it disproved the belief that the number of circumvolutions is directly proportional to the intelligence of the animal. the rat has few circumvolutions, but is rather intelligent

[Dustfinger]

The proportions of the different parts of the brain are rather different, I think.