The ocean's depths hold untold mysteries waiting to be unveiled. Our host Rishaan takes us on a journey into the abyss, where marine biologist Dr. Sarah Ramirez has encountered astonishing lifeforms that illuminate the darkness. She describes coming face to face with creatures that glow with an ethereal light, as well as glimpsing the rarely seen giant squid in its natural habitat. Through Dr. Ramirez's work and others', we are learning how the diversity of species that inhabit the remote realms below regulate the climate on our surface world. On this episode of "Exploring the Unseen," come discover with us the many marvels and insights to be found in Earth's final frontier.