The Zoo has been following the work of the Zoological Society of London and this evening it looks at the ground-breaking work being done at the Bedfordshire attraction involving chimps and heart surgeons.
Click above to watch ITV News Anglia's Olivia Paterson report
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Low cloud and mist developing overnight. Another mild night ahead. Generally rather cloudy tomorrow, with a few brighter breaks developing.
Generally cloudy with occasional outbreaks of rain during the morning. Some glimpses of the sun are possible. Feeling mild
We're one week into December and the countdown to Christmas is well underway. Read the latest in ITV News Anglia's Christmas Shout Outs.