Cognitive abilities of female southern pied babblers found to decline with age even as they produce more offspring

[PhysOrg]

A team of researchers at the University of Western Australia, working with a colleague from the University of Exeter, has found that as female southern pied babblers grow older, they produce more offspring—even as they lose some of their cognitive abilities. In their study, published in the journal Proceedings of the Royal Society B, the group tested the cognitive abilities of the birds as they aged in the wild while also noting their reproduction levels.

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