EXCLUSIVE : Nat Geo is currently on a two-track tear of shows with A-list stars exploring a world such as Limitless with Chris Hemsworth and Tucci in Italy and blue-chip wildlife titles that dive deeper in the natural world such as Ocean with David Attenborough and Secrets of the Bees . The latter is part of a franchise, led by Avatar director James Cameron, that Nat Geo is currently building out even further. Deadline understands that the Disney-owned factual brand is doubling down with two new iterations of the Secrets Of… franchise. It has ordered Secrets of the Bears (w/t) and Secrets of the Deep (w/t). These follows Secrets of the Bees , which launched earlier this month, Secrets of the Whales , which premiered in 2021, Secrets of the Elephants , which debuted in 2023, Secrets of the Octopus , which launched in 2024 and Blake Lively-narrated Secrets of the Penguins, which aired last year.…