Thanks to the use of a specialized infrared camera, we're now able to witness a never-before-seen phase of clownfish development: the nighttime hatching of larva from their eggs.
Almost 60 years after his first visit to the Great Barrier Reef, Sir David Attenborough returns to unlock new secrets about the largest living structure on Earth. Working with a team of experts aboard a state-of-the-art research and exploration vessel, David takes us to mysterious depths for an up-close look at the wonderfully diverse community that calls this place home. Through computer modeling and radiocarbon dating, we uncover surprising details about the reef's origins, which are more recent than once believed.
Watch this episode online now.
Stream hundreds of shows by starting your free trial to Smithsonian Channel Plus. Check the availability of this title and explore our vast library of original documentaries and series.
Access even more free Smithsonian Channel full episodes and documentaries online through participating TV providers.
Find out if your television provider carries Smithsonian Channel.
Don't panic! It's simple to upgrade to the latest version of one of these browsers:
Don't panic! To get the best possible experience on smithsonianchannel.com we recommend you upgrade your operating system.
For the best possible site experience, please use Chrome for Android.
Add username "SmithsonianChan" on Snapchat for fun and fascinating facts. We'll be sharing spontaneous photos and videos as inspiration strikes.