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