Coral Reefs 101 | National Geographic

What are coral reefs? Coral can be found in tropical ocean waters around the world. But how much do you know about reefs and the tiny animals—polyps—that build them? Learn all about coral and why warming waters threaten the future of the reef ecosystem.

About National Geographic:
National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.

Get More National Geographic:

Read more about Corals here:

Coral Reefs 101 | National Geographic

National Geographic

[karan]

*“Size of a basketball”* They'll use anything but the metric system.
But, joking aside, thanks for such a highly informative video, it was utterly helpful.

[kamou_flage]

WE NEED TO PROTECT THIS BEAUTIFUL AWESOMENESS!

[pikam_]

I'm using this for school as my year is ✨Back in lockdown ✨

[intellectualblackking]

We need her to do every video from now on

[kwossan_fairy]

very nice. here in the Philippines, our corals are dying this vid helps inform the new generation about the threats of climate change

[outoftheden]

I have seen this first hand and made a video on Andaman coral reef’s grave conditions along with many interesting facts. So I can totally relate to this.

[lilpea]

This helped me so much with my assignment ty!!!

[VixenVulpix]

I see this is very wonderful scientific stuff. Three methods of a coral is hard to find

[Anonymoose]

Excellent little tutorial! The more we can educate people, the better our odds that they'll last a while longer. I've been diving the reefs in the Florida Keys and the Dry Tortugas for many years, and at the top of my bucket list is to dive the Great Barrier Reef before the human race destroys it.

[apdroidgeek]

I keep corals in my mini reef aquarium, but it’s so different when you seen them in the wild.

[marifisk]

it’s unfortunate that human influence in climate change has lead many of Earth’s wonderful species and ecosystems to be endangered. I will do my best on my part, but I hope that we all can do our best as well.

[EpicBlockClutch]

nice video and voice! i rly loved it! it was informative for my arts project!

[benventura]

YouTube needs a new option. Not just like and dislike. Maybe an approve I relate button. This video is amazing though.

[gohilvishal]

Too many doubts cleared in a single short video... Boom! Thanks guys!

[jrgamin]

I have to compare and contrast coral reefs, a forest, and grasslands like how bro

[rajatverma]

Thnkiew so much for this great videos 🌹🥀

[thebookishgirl]

Its my exam and I'm watching this video to see how they looks like😜

[NewMessage]

The efforts to save the reefs are as multi-pronged as the threats they face.. there's hope yet!

[AAC-uome]

Was I the only person who saw them using a clipboard underwater

[breveennkukan]

Fascinating! I didn’t know coral are animals.