Robots Enter the Race to Save Dying Coral Reefs

Taryn Foster believes Australia’s dying coral reefs can still be rescued—if she can speed up efforts to save them. For years, biologists like her have been lending a hand to reefs struggling with rising temperatures and ocean acidity: They’ve collected coral fragments and cut them into pieces to propagate and grow them in nurseries on land; they’ve crossbred species to build in heat-resistance; they’ve experimented with probiotics as a defense against deadly diseases.

But even transplanting thousands of these healthy and upgraded corals onto damaged reefs will not be enough to save entire ecosystems, Foster says. “We need some way of deploying corals at scale.” Sounds like a job for

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