No, it Just wasn't in them; too small a brain.

Women, it would seem, actually have smaller brains than men, though perhaps not in proportion to weight.

The head has a small brain of its own, but can only rely on instinct.

I believe it comes of having too small a brain.

The Jocks are a group of big strong guys with small brains.

So why not find out what was going on in their small, primitive brains?

"Power ready," came the signal of the small brain built into it.

Its nervous system was probably dispersed, but with a small central "brain".

The menu is confusing (for me and my small brain).

Only an animal, with a brain smaller than a man's, and no tools.