Jonathan and Angela continue to document the lives of the Marsh Pride of lions that Jonathan first began following in 1977. They also wrote up the story of Half-Tail the leopard from 1988 to the time of her death in 1999. They continued to follow her daughter Zawadi (aka Shadow) from 1996 until she disappeared at the age of 16 in 2012. They now follow Zawadi's four-year-old daughter who can sometimes be seen around Leopard Gorge in the North Mara Conservancy. Bradt Publishers published new updated editions of The Marsh Lions in 2012 and The Leopard's Tale in 2013 bringing readers up to date with Half-Tail and Zawadi's story.