Rejuvenescence

Rejuvenescence is a unique survival strategy observed in certain coral species, which enables them to recover from harmful warming events.

[1][2][3] This strategy involves the contraction and subsequent rejuvenation of individual coral polyps within a colony.

[1] This mechanism involves a decrease metabolic activity, leading to a significant shrinking of the polyps, their partial retreat from inner skeletal structures, and the formation of a new protective cup, known as a calyx.

[3] Rejuvenescence represents the ability of corals to adapt and persist in the face of environmental stressors, providing hope for their resilience in the context of climate change.

[1][2] A study published in 2019 gives insight on the significance of rejuvenescence and its potential implications for the long-term survival of coral reefs.