"Vocal Learning: The Key to Problem Solving and Brain Growth"
A study from The Rockefeller University reveals that European starlings, known for their diverse vocal abilities, are not only advanced vocal learners but also adept problem solvers. The research suggests a co-evolution of vocal learning, cognitive abilities, and relative brain size. The study found a strong correlation between problem-solving abilities and vocal learning abilities in starlings, blue jays, and catbirds. These species, which were the most advanced vocal learners, also had larger brains relative to their body sizes. The findings support the idea that the evolution of complex behaviors like spoken language, which relies on vocal learning, is associated with the co-evolution of other complex behaviors.