Marine biologist Elvira Alvarado, known as the "mother of coral". At 70, she's still diving and pioneering a type of coral IVF to help save endangered reefs. (John Otis | NPR) SAN ANDRÉS, Colombia — ...
SAN ANDRÉS, Colombia — Nearly 50 years after she first put on a wetsuit, Elvira Alvarado still remembers coming upon a coral reef off Colombia's Caribbean coast. "Everything was alive. And it was ...
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