Reef corals weathered dino extinction, may survive global warming

The video discusses how algae harness energy from sunlight and their symbiotic relationship with coral, which was believed to have started 50-65 million years ago but new research suggests it began 160 million years ago. It highlights the genetic diversity of algae, suggesting the genus Symbiodinium should be divided into 15 genera with numerous species. The video also addresses concerns about coral bleaching due to warming waters, noting that some algal species may be more heat-tolerant.

What are the concerns related to warming waters for coral?

What findings suggest about some algal species in relation to heat tolerance?