Elkhorn and staghorn corals (IMAGE)

Penn State

Elkhorn and staghorn corals

Caption

Reef-building corals, such as elkhorn coral (Acropora palmata) staghorn coral (Acropora cervicornis), and their hybrid, all pictured here, coevolve with the microscopic algae that live within their cells, according to a new study by Penn State biologists.

Credit

Lisa Carne, Fragments of Hope Belize

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