Prolonged Parental Feeding in Tool-Using New Caledonian Crows
According to life-history theory, the duration of extended parental feeding is determined by the costs and benefits of maximising reproductive success. Therefore, the length of regular parental provisioning should be correlated with the time required for juveniles to acquire the skills that they need to be independent. The relatively few cases of extremely prolonged parental feeding in both land and sea birds appear to be consistent with this prediction because they are associated with...[Show more]
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