WATCH: Prince Harry and Dr Jane Goodall's 'chimpanzee greeting' will melt your heart

Cape Town – On Tuesday, Prince Harry met with celebrated, world-renowned primatologist and conservationist, Dr Jane Goodall as part of the Sussex Royal pledge to focus on the environment for July. 

At Goodall's 6th Roots & Shoots Global Leadership gathering, the Duke of Sussex met with young people doing ground-breaking work to protect the environment. 

Dr Jane Goodall's global organisation, Roots & Shoots, was established as a way for the conservationist to speak to the youth and encourage them to act in protecting the environment. The organisation started in 1991 with just 12 high school students in Tanzania and now has over 150 000 groups in over 50 countries. "The collective power of these young people is limitless," commented the Sussex Royal Instagram account. 

"As my grandmother The Queen once said, 'Sometimes the world's problems are so big we think we can do little to help,'" the Duke said on Tuesday, CNN reports. "On our own, we cannot end wars or wipe out injustice, but the cumulative impact of thousands of small acts of goodness can be bigger than we imagine." 

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Today, The Duke of Sussex met with young people doing ground-breaking work in their communities as part of Dr. Jane Goodall’s Roots & Shoots Global Leadership gathering. Started in 1991 by world renowned ethologist and primatologist Dr. Jane Goodall, with just 12 high school students in Tanzania, Roots & Shoots brings together young people from around the world who are leading projects in their communities to make the world a better place for people, animals and the environment. Today @RootsAndShoots has over 150,000 groups in over 50 countries - the collective power of these young people is limitless. His Royal Highness believes that people are at the heart of conservation and sustainability and that in order to succeed we need an inclusive, community-centred approach. In his roles as President of The Queen’s Commonwealth Trust and Commonwealth Youth Ambassador, The Duke has met young people from around the world who are leading the way with creative sustainability solutions and campaigns – it is thanks to the creativity of young people’s minds, that we can turn the tide and preserve our planet for future generations. After listening to presentations on endangered species, reducing plastic waste and embracing the wild, The Duke had the chance to thank all the young people taking part for their efforts and the difference they are making every single day. As a continuation of our monthly social awareness approach, for July we turned our attention to following accounts featuring the environment. @JaneGoodallInst, founder of Roots & Shoots, is one of those selected profiles, having dedicated her life’s work to bettering our environment and world. To learn more, visit @RootsAndShoots. Photo©? PA images

A post shared by The Duke and Duchess of Sussex (@sussexroyal) on Jul 23, 2019 at 11:28am PDT

With a love for wildlife and the environment, in 1960 at just 26 years old, a young Woodall left England for Tanzania, immersing herself in the wonderful world of the chimpanzee. So when she met with the Duke of Sussex, the two shared a sweet 'chimpanzee greeting', as well as a little dance. 

WATCH THEIR SWEET EXCHANGE BELOW: 

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A couple of captured moments between The Duke of Sussex and Dr. Jane Goodall at today’s event. The pair share an impromptu dance and ‘Chimpanzee Greeting’ which Jane taught The Duke when they first met. Today’s event was full of education, inspiration and fun. Because working hard and playing hard are not mutually exclusive... ?? For more information on today’s special event on Roots & Shoots, please see previous post.

A post shared by The Duke and Duchess of Sussex (@sussexroyal) on Jul 23, 2019 at 12:33pm PDT

According to royal correspondent, Emily Andrews, Goodall asked The Duke of Sussex if he remembered the greeting she'd taught him the first time they met. 

"They brilliantly re-enacted it," Andrews explained. "Jane as the nervous female approaches and Harry pats her on the head to encourage her for a hug!"