A bleached coral recovers after touching its own clone
Five bleached fragments of Pocillopora damicornis, each about 1 to 1.5 centimetres across, were set against healthy fragments cut from the same colony. All five recovered completely within eight weeks 245.
Five more fragments held a few millimetres away died 245. Where the identical tissues touched, they fused, and algae plus the nutrients those algae make moved across the join; the team saw algae inside the bleached piece within three days 245. The paper appeared in Science Advances on 14 October 2026 245.
What each field noticed (2)
Daily briefing: Bleached corals revived by healthy neighbour’s touch
Nature's briefing led with the bridge: the two pieces fuse, and symbiotic algae spread across it. The bleached coral was fully restored in eight weeks even when the healthy piece was removed after a week 28. Marine ecologist Fiorenza Micheli, a co-author, said the result "can inspire solutions that eventually may be scalable" 28.
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A Bleached Coral Lived Because It Touched Its Clone
The Bright Side told where the experiment came from. In 2025 two pieces of coral in Steve Palumbi's lab at Hopkins Marine Station tipped over onto each other, one bleached and one not, and colour returned where they touched. Oceans PhD student Danny Collins turned the accident into a controlled trial 245.
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