Bigger Not Necessarily Better, When It Comes to Brains
"Animals with bigger brains are not necessarily more intelligent," according to Lars Chittka, Professor of Sensory and Behavioural Ecology at Queen Mary's Research Centre for Psychology and University of Cambridge colleague, Jeremy Niven. This begs the important question: what are they for?
Research repeatedly shows how insects are capable of some intelligent behaviours scientists previously thought was unique to larger animals. Honeybees, for example, can count, categorise similar objects like dogs or human faces, understand 'same' and 'different', and differentiate between shapes that are symmetrical and asymmetrical.
"We know that body size is the single best way to predict an animal's brain size," explains Chittka, writing in the journal Current Biology. "However, contrary to popular belief, we can't say that brain size predicts their capacity for intelligent behaviour."
