｜Length : 24min. ｜Year : 2014 ｜

The behavior of marine animals still remains a mystery. A world-renowned biologist, Yuki Watanabe, researches and records their behavior using a method called bio logging. By attaching a motion recorder called logger and a miniature camera to the animal, the secret lives of these animals become clearer through captured footage. It is the most advanced field of research that has rapidly developed over the last 20 years in the biology field.
Watanabe’s biggest accomplishment is the invention of logger retrieval system. Until now, bio logging was limited to animals that returned to their nest since that was the only way the logger could be retrieved. But Watanabe solved this problem by utilizing IT equipment and intelligence which instantly broadened the field of research. Joint research offers flocked to Watanabe from around the world and he became known as the “Indy Jones of the biological world.”
When Watanabe went to Antarctica as a member of the Antarctic expedition team, he captured footage of the Adelie penguin by attaching a camera to the penguin. That footage has garnered a lot of attention as it is the first time anyone has clearly seen a penguin eating its prey in its natural setting. It has been assumed that tuna swim at a high speed at almost 80 km/hour. But based on Watanabe’s research, they swim at about 3 – 8 km/hour. Even in emergency situations, they only reach speeds of up to 30 km/hour. In this way, Watanabe works to clarify the behavior and habits of marine animals which are often shrouded in mystery.
The program follows Mr. Watanabe for three years. It introduces a joint research project he did with Australia’s Tasmania University on the broadnose sevengill shark. It also presents a lot of the world premier footages, captured by cameras attached to marine animals.