Image for Why do we live so long? Childcare with the Hadza tribe

Why do we live so long? Childcare with the Hadza tribe

Duration: 05:12

Dr Alice Roberts talks childcare with the women of the Hadza tribe, where grandmothers play a vital role.

Available since: Sun 16 Oct 2011

This clip is from

Origins of Us Brains

3/3 Alice Roberts looks at our large, clever brain and why we are the only one of our kind.

First broadcast: 31 Oct 2011

Image for Brains Not currently available on BBC iPlayer

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