Why birds can't evolve further to become as intelligent as humans: Evolution has limits

Some varieties of birds are extremely intelligent: they can use tools, they can mimic human voices and live for many years.

At the same time, they aren't as smart as humans, and research published on National Library of Medicine explains, why.

Here are a few reasons.

Brain Structure

The structure and organization of the avian brain differ significantly from that of mammals, including humans. 

Birds have a different brain structure, with regions such as the pallium serving similar functions to the mammalian neocortex but with distinct anatomical differences.

Evolutionary Constraints

Evolutionary pressures and environmental factors shape the development of intelligence in species. 

Birds have evolved to excel in areas such as flight, foraging, and communication, where they display remarkable adaptations. 

Trade-Offs

Intelligence comes with metabolic costs. 

Developing and maintaining a highly intelligent brain requires a substantial amount of energy and resources. 

In the case of birds, energy allocation is often directed towards flight and other adaptations specific to their lifestyles. 

Social Complexity

Humans have developed complex social structures and cultural systems that have contributed to the development of higher intelligence. 

While some bird species exhibit social behaviors and communication skills, they generally do not possess the same level of social complexity as humans.
 

• Related news:
• evolution
• birds
• bird facts
• research
• intelligence
• 22 June 2023

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