On today's Cool Science Radio John and Lynn's guests will be:Theoretical physicist (01:01) Antonio Padilla who has written, Fantastic Numbers and Where to Find Them: A Cosmic Quest from Zero to Infinity. Padilla explores nine of the most extraordinary numbers in physics that illuminate the ultimate nature of reality.Then, (28:33) Dr. Gabby Wild, Wild is a NatGeo Kids educator and author, and her latest book, How to Speak Animal, helps kids understand how animals communicate through sound, body language, and behavior. It’s full of expert insights and real-life stories of humans exploring ways to “talk” to animals, from teaching great apes sign language to speaking “dolphin.”