PhysOrg Posted January 17, 2023 Share Posted January 17, 2023 Brains are key organs because they make sense of the world and help us successfully navigate through our lives. While all animals have brains, some species have rather large brains relatively to their body size—and this is very beneficial. A large brain gives species much more flexibility to deal with everyday problems and helps them make better decisions or find innovative solutions. However, brain size (relative to body size) varies tremendously among roughly 10,000 bird species.View the full article Quote Link to comment Share on other sites More sharing options...
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