[Machine Translation] Real "knowledge" is hidden behind the scenes. Welcome to the deep world of the hidden. Actor Nakamura Rinya will be your guide. Museums, art galleries, botanical gardens, zoos.... The camera sneaks into the "backyard" of facilities that arouse your intellectual curiosity! [Reporter: Naoki Tanaka Almost all of the animals in the zoo are endangered species! What is the "science" behind it? [Tennoji Zoo Reporter: Sayuri Matsumura Experience the savanna in the heart of Osaka! The zoo has the largest koala zoo in Japan, and we look into its love, wisdom, and ingenuity. The first breeding challenge of the "Malumi elephant