Jonathan and Todd join cave biologist Fernando Calderon Gutierrez to assist with his scientific research on the incredible amount of life in this cave which survives on something surprising. WARNING! Cave diving is extremely dangerous without proper equipment and training. DO NOT attempt to dive in caves without training. JONATHAN BIRD'S BLUE WORLD is an Emmy Award-winning underwater science/adventure series featuring underwater cinematographer/naturalist Jonathan Bird. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ ● Subscribe to Blue World https://www.youtube.com/c/BlueWorldTV/?sub_confirmation=1 ● Become a Member https://www.youtube.com/channel/UCFH-Qa1s6rQRTrQjFg8N84Q/join ● Check out our Extras Channel https://www.youtube.com/channel/UCXRF_NqOUBJszlmqBJVBkYA ● Blue World Merch http://www.blueworldtv.com/shop ● Support us on Patreon http://patreon.com/BlueWorldTV ● Instagram https://www.instagram.com/blueworldtv/ ● Facebook https://www.facebook.com/BlueWorldTV ● Twitter https://twitter.com/BlueWorld_TV ● Website http://www.blueworldTV.com ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ #scubadiving #cavediving #rebreather Chapters: 0:00 Intro 1:10 Meet Fernando 2:43 Arrive at the Cenote 6:49 Start the Dive 10:30 We find life! 12:17 Remipedes! 17:15 Mystery Substance 20:24 Heading back out 22:10 Back at the makeshift lab 23:18 Conclusion