Researchers report that bleached coral can rebound rapidly when it is in direct physical contact with a healthy coral of the same genetic type. Multiple outlets describe experiments in which a bleached coral fragment gains recovery support after touching an unbleached neighbor, rather than relying on recovery on its own. Phys.org frames the work against the backdrop of widespread reef bleaching driven by rising sea temperatures.
ABC News and The New York Times say the recovery can occur far faster than expected when the corals are genetically identical, with one set of results noting visible improvement within weeks and another describing a particularly rapid rebound after contact. Nature adds detail on how this may happen: the study suggests a coral tissue bridge can form between the partners, enabling the bleached coral to access crucial microalgae needed for recovery. While the findings highlight a potential pathway for resilience, the reports also situate the problem within ongoing climate pressures, including this year’s strong El Niño conditions that intensify thermal stress on reefs.
