Florida's iconic corals aren't having babies anymore. Scientists are alarmed. - Footage shows coral bleaching at Western Australia's Ningaloo Reef - video - Large areas of WA's Ningaloo corals could die in 'weeks ahead' after widespread bleaching documented - These Corals Are Made for Walking - Scientists stunned to find corals that 'walk' towards light - 'We're keeping them safe': Scientists build 'Noah's Ark' for endangered corals - Artificial light at night messes with coral reefs - Corals depend on near neighbors to reproduce, research reveals - Scientists say biggest coral in the world discovered in the Pacific - This giant coral is the biggest ever found -- November's best science images