Which bird is the most intelligent?

Scientists have found that cockatoos can teach each other how to make and use tools.

03 September 2014

4 minutes

This clip is from

Today—03/09/2014

Science and Nature clips
Listen to a selection of clips from recent and upcoming programmes.

Ashya 'emotionally confused' says brother
Duration: 06:35
Straw: My 'instinct' is for UK to support US airstrikes in Iraq
Duration: 09:20

Look up for tonight's rare planet parade
Duration: 03:50
Why Waitrose is removing mackerel from its shelves
Duration: 03:50
What's the key to staying mentally sharp in later life?
Duration: 04:09
Follow your talents not your dreams - good advice?
Duration: 04:21