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Diverse assemblages of reef-building corals make up the framework of coral reef ecosystems
© Michael Fox, Woods Hole Oceanographic Institution
New study measures how much of corals' nutrition comes from hunting
When it comes to feeding, corals have a few tricks up their sleeve. Most of their nutrients come from microscopic algae living inside of them, but if those algae aren't creating enough sustenance, corals can use their tentacles to grab and eat