Prince Harry appealed this Monday for more global efforts to protect the environment from people's "greed, apathy and selfishness"
During a visit to Malawi's Liwonde National Park, Harry joined a ranger patrol against poaching as a way to address the urgency of the fight against poachers whose activities threaten the survival of elephants, rhinos and other species.
Also on Monday, the Duke of Sussex was the guest editor of the National Geographic magazine Instagram account to encourage people around the world to value the ecological importance of trees, Buckingham Palace said.
"Preservation used to be an area of experts, driven by science. But now it is critical to our survival, and we need to overcome greed, apathy and selfishness to make real progress," Harry told the British Daily Telegraph.
"This may sound like hippie talk to some people, but we can't afford to have a 'them or us' mentality. Humans and animals and their habitats need to coexist, or within the next 10 years our problems on this planet will become unmanageable."
After visiting South Africa last week with his wife, Meghan, and their four-month-old son, Archie, Harry traveled alone to Botswana, Angola and Malawi.
Harry arrived in Malawi on Sunday, meeting President Peter Mutharika and visiting a university to meet young women whose education is supported in part by the Commonwealth Fund.
On this visit, the 35-year-old Prince was surprised by a Skype phone call from his wife, Meghan Markle, and could not disguise the surprise of the moment.
Harry is due to return to South Africa this Tuesday, where he will join his wife, Meghan, and four-month-old son Archie.
On Wednesday, the last day of the 10-day British royal family's southern African tour, the couple are due to meet Graça Machel, widow of Presidents Samora Machel (Mozambique) and Nelson Mandela (South Africa).