It has been widely understood that the proportion of brain size vs body size is the most common gauge for animals’ intellectual capabilities. Years of scientific work has relied on this measure to predict intelligence in all forms of animal species. It has become fact that as far as brain size is concerned, that of the human’s was exceptionally large in proportion to its body mass. We understand this in the same way we understand, then, that ants are actually stronger than other bigger animals because they can carry things more than their size and weight.
However, what we know of animal intelligence now may be different in the generations to come. A study performed by a group of scientists from German institutions such as the Ornithology Institute of Max Planck and the Universität Konstanz, along with Britain’s Universal College London have discovered that the connection between the development of the body and the brain is orchestrated by different adaptive mechanisms throughout evolution, and animals have different ways of executing it.