1.   Although the creature walked upright, the combination of specialised chewing behaviour and a small brain does not make it our direct ancestor.

2.   And people say the horses have small brains.

3.   But the leap from small brain plus large spinal cavity to second brain was only conjectural.

4.   How insects with such exceedingly small brains manage to pass homing instructions to succeeding generations is an entomological phenomenon.

5.   In a pallidotomy, surgeons remove cells that are firing abnormally in a small brain region that governs movement.

6.   In proportion to their bodies, stegosaurs indeed had quite small brains, usually described as walnut-sized.

7.   Likewise, animals with relatively small brains tend to play less.

8.   Many elderly people have small brains yet are mentally alert.

9.   Moreover, these abnormally small brain regions are packed with an excessive number of neurons.

10.   She had a small brain and stood upright.