There are approximately 6,000 species of mammals on Earth, and all of them have one thing in common: they raise their young by nursing them with milk. Researchers studying this mysterious liquid have discovered that milk is "custom-made" with ingredients optimized for each species, and also revealed the clever mechanism in human breast milk that protects babies from disease. Based on the latter's research results, technological development is underway to make formula that is more like human breast milk. In this episode, we'll explore the origins of milk and its amazing powers among mammals. [J-Innovators] A New Device to "Visualize" Discussion