Coral

Used for adornment since prehistoric times, coral inlays and ornaments have been found in Celtic tombs dating from the Iron Age. An organic gemstone from the sea, coral was believed to bestow wisdom, protect from evil, heal wounds and calm the soul.

Hawaii's coral reefs are in peril. What researchers are doing to restore coral ecosystems and preserve biodiversity - ABC News

15 Most Beautiful Coral Reefs In The World

Cool Coral – Bethesda Green

Carbon balance in coral reefs

Collection of colored corals of different shapes, coral reef. Stock Vector

Coral Facts - Southeast Florida Coral Reef Initiative

Fiji's Colorful Corals Are Indication of Coral Health, Reef ResilienceLiving Oceans Foundation

Holomua Marine Initiative

Hard Corals - Coral Reef Alliance

Watch: While many reefs are dying, this one is exploding with new life - Vox

Coral Reefs Coral Restoration Foundation

How NOAA researchers are helping Florida's coral reefs : Short Wave : NPR

15 Amazing Facts About Coral Reefs

Pacific coral reef shows historic increase in climate resistance