The 32-year-old worked alongside volunteers, vets and experts helping to move endangered elephants to a safe sanctuary in Malawi. Prince Harry helped with the first phase of the relocation, when 261 elephants were rehomed. The remaining 239 will be moved during the second phase next summer.
Images showed the royal marking an elephant so it can be recognised when it is released into the wild, and another shows him helping volunteers from conservation group African Parks to “tip” a young male elephant that had just been given a sedative.
Prince Harry said: “There has to be a balance between the numbers of animals, and the available habitat. Just how nature intended it.
“In this case, African Parks, in partnership with the Malawian government, has re-established a safe area for elephants to be moved back to.
“This simultaneously relieves the pressure in Liwonde, and restocks Nkhotakota so both populations of elephants can continue to grow.”
In a video of his mission, Harry says in some countries the number of elephants is dropping fast.
He adds: “It’s amazing to see such unbelievable creatures being moved in a way you could never dream of. To be with elephants, such massive beasts, is a unique experience.
“In a weird way they know we are here to help. They are so calm and relaxed.
“They need to be moved to a different place so this is the most efficient and least invasive way of doing it.”
African Parks CEO Peter Fearnhead said: “We are thrilled to have Prince Harry serve as an integral part of our relocation team.
“He has extensive field experience and was extremely comfortable with the animals, whether helping an anaesthetised elephant to the ground and monitoring its breathing to affixing radio collars.
“He played a vital role in many of the aspects of this giant operation which requires not only hands on deck, but a vigilance he exudes and a commitment to the cause he embodies.”
As well as moving elephants, Prince Harry also helped to relocate a male rhino, antelope, buffalo and zebra as well as re-collaring three lions with GPS systems so they can be monitored and protected.
The African elephant is being increasingly threatened by poachers who hunt them to feed the enormous demand for ivory. It is estimated that between 30,000 and 40,000 are being poached every year.