On today's Cool Science Radio Lynn's guests are: former National Geographic writer and journalist (1:02) Daniel Stone, who takes readers on an entertaining adventure through the deep sea, diving into the incredible culture of shipwrecks in human history in "SINKABLE: Obsession, the Deep Sea, and the Shipwreck of the Titanic."Then, best-selling author (23:50) Alexandra Horowitz takes listeners through the first year of a puppy's life in her new book, "The Year Of The Puppy: How Dogs Become Themselves."