Life on the Reef

Coral Spawns

Clip: Episode 2 | 2m 13s

Loading Player...

All at once, billions of coral polyps for hundreds of miles release their egg and sperm into the ocean during the annual coral spawn. As the fireworks begin, the water column fills with what looks like an upside down snowstorm. This mass synchronized event is unlike any known elsewhere in the animal kingdom. Yet as big as it is, there’s also beauty in the detail.

Aired: 07/29/15 | Rating: TV-PG

Watch Full length

More Extras From This Episode

See all Extras

More Episodes

See all Episodes

More Science and Nature Shows

Browse all Science and Nature Shows

Sign into PBS

By creating an account, you acknowledge that PBS may share your information with our member stations and our respective service providers, and that you have read and understand the Privacy Policy and Terms of Use.

Confirm Your Local Station

To help you find your favorite shows and great local content, we've selected a PBS station in your area.

Please confirm that WETA is your preferred local station, or choose another station below.