Mr Downie is joined by one of the world's foremost primatologists, Prof Frans de Waal (Emory University) and Dr Mike Webster (St Andrews University) to discuss Social Behaviour.
This episode is based on the Social Behaviour Key Area from Unit 3 of the SQA Higher Biology Course.
You can watch the footage referred to of Mama's Last Hug on YouTube
You can ask questions or get in touch via @BiologyHigher on Twitter
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Thanks also to Education Scotland for their support.
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