>There's good evidence that chameleons can turn one half of their brains off, in
>a sleep-like state, while the other half makes sure no predator is around.
>I also heard, second hand and not from a scientist, that dolphins can do
>something similar.
I has suggested to her that she was perhaps thinking of dolphins since
I have read an article (some years back) which said they use one half
of their brain during the day whilst the other sleeps and vice versa
during the night.
Is this true?
Also what i the actualy percentage of our brains we actually use as I
have seen this vary from as little as 10% to as much as 60%.
Little Steve