Tropical rainforests don’t give up their secrets easily. ... That’s why it’s so rewarding to see these incredible images.” ...

Lucas, a U.K.-based photographer who specializes in high-definition camera-trapping, set up cameras at four sites in the Nouabalé-Ndoki National Park, a 4,000-square-kilometer (1,545-square-mile) ...

A leopard, or Panthera pardus ... The trail cameras also photographed a porcupine, hog, civet, mongoose, mouse-deer also known as a chevrotain and several types of antelopes known as duikers.