Space/Science — HabitableZone

Space/Science » in reply to We'd better record those reefs while we've still got them,

re: while we've still got them,

Simple common sense again: Coral reefs have been around for about 450 million years, surviving the geological and environmental changes that took place during those times. Reefs have vanished from some places, and appeared in others, but there have always been reefs.

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