Being lower in pecking order improves female tit birds' memory

When it comes to remembering where a tasty titbit was left, female great tit birds are miles ahead of their male counterparts. This ability might have evolved because the females come second when there's food to be shared, argue Anders Brodin and Utku Urhan of Lund University in Sweden. In Springer's journal Behavioral Ecology and Sociobiology, they present one of only a handful of cases in nature in which the female of a bird species has better spatial and learning abilities than the male.

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