The deep sea – and the creatures that occupy it – can often feel like a scary and intimidating unknown. But in Sabrina Imbler's new book, How Far The Light Reaches, the author finds a lot of common ground with marine life ranging from the common goldfish to the Bobbitt worm. In today's episode, Imbler speaks with Greta Johnsen, host of WBEZ's Nerdette podcast, about writing a memoir that weaves biology and personal anecdotes into a greater understanding of gender, family and coming of age.