Conservation is the ultimate motivation for all of Christian's work, and it was this that prompted his dramatic career change. "I wanted to communicate science and conservation issues to a broader audience. I felt that as a biologist I was not doing that, and that I could play an important role as a translator, explaining conservation issues and natural history stories. Stories are what people learn from; I see what I do as visual storytelling and so the context is very important," he says. "I aim to present every bit about the life of the animal, so that people understand it personally and care for it, and maybe want to preserve it.
Christian has extensively photographed life in rainforests across four continents. He works with several NGOs, is a founding fellow of the International League of Conservation Photographers, as well as a National Geographic Explorer. He has collaborated on projects with the National Geographic Society in Panama, Peru and Bhutan, is a regular contributor to National Geographic magazine and has held well-received exhibitions all over the world. He produced the imagery for A Magic Web, an award-winning coffee table book on tropical ecology, and created Deceptive Beauties, a book on wild orchids and their pollinators. His book Jungle Spirits, which was written by his wife Dr Daisy Dent, was published in 2017 by teNeues Media.