Jane Goodall dies aged 91: "A great loss to the scientific world"
Jane Goodall: A look back at her incredible life
Science unlocks life and legacy of PG Tips chimpanzee
Feeling ruff? Human stress linked to dogs' emotions
Great Apes spin until they are dizzy to get ‘high’
UK zoo celebrates birth of ‘world’s rarest chimpanzee’
Chimpanzee lip smacking offers insight into evolution of human speech
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