Fraternal singing in zebra finches

The song of songbirds is usually transmitted from one generation to the next by imitation learning and is thought to be similar to the acquisition of human speech. Although song is often learnt from an adult model, there ...

A flair for imperfections

To most people, a useless flint axe is just that. To archaeologist Sigrid Alræk Dugstad, it is a source of information about Stone Age children.

Older fathers found to produce less fertile offspring

(Phys.org)—An international team of researchers has conducted an extensive study of male fertility and aging and has found evidence of older fathers producing less fertile offspring than younger fathers. In their paper ...

Half of Swedish three-year-olds online: study

Swedes are among the world's most connected people and are swarming to the Internet at an ever earlier age, a study published Wednesday showed, indicating that half of Swedish three-year-olds have been online.

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