With us being poor divers, we need special equiptment to dive to the ocean's depths. But some air-breathing animals can dive deeper than a submarine and hold their breath underwater much longer than a human can. But who is the most extreme diver? Find out in this top 10 countdown of the best divers in nature. There's a seal that can hold it's breath for 90 minutes underwater and a spider that dives to the depths using an air bubble! Discover what it really takes to venture 20,000 leauges under the sea when diving is taken to the Most Extreme.
