Chapter 23, Problem 1ITD

Summary Introduction

To review:

The relative changes of the body size and brain size in the lineage through the time with the help of the data provided in the form of a graph.

Introduction:

The brain size increases with the increase in body size. There are some cases in which the size of the brain is associated with the intelligence of an organism, although it is not true in all cases. The smaller mammals like mice have a similar body–brain ratio like humans and the elephants have lower ratio comparatively.