Expedition on corals and global warming in Puerto Rico

For just one late-summer night each year, the shallow waters off the coast of Puerto Rico fill with the pale-pink spawn of elkhorn corals - the tiny, round packets of the adult corals' eggs and sperm. This year, Iliana Baums, assistant professor of biology at Penn State, was there to collect the coral spawn as part of a research and education project to grow the newborn juvenile corals for distribution to aquaria and to the wild...

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