Rebecca Harrison

In March, ZSL London Zoo and its sister zoo Whipsnade fell silent as potential visitors stayed away. This series reveals how a dedicated skeleton staff continued to care for the 20,000 animals in Regent's Park and the Dunstable Downs in Bedfordshire

It is estimated that about 1 in 100 people are psychopaths, but although many violent offenders fall into this category it does not mean all psychopaths will be violent. Nor does it mean all violent people are psychopaths. Is the tendency towards psychopathic behaviour something that people are born with, or is it something caused by our upbringing? Find out about the indicative behaviours doctors look out for when making a diagnosis of psychopathy.

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