A branching coral colony with visible polyps beside a bleached white coral branch, a zooxanthellae algae cell, and a planula larva on a light gray background.

They're Animals, Not Plants — How Well Do You Know Corals?

Jellyfish & Anemones

Difficulty

Medium

Questions

25

Volts

2/q

They look like rocks, were mistaken for plants, and protect 500 million people from storm waves. Corals are colonial animals that farm algae, sting with cnidocytes, and spawn in sync with the full moon. This quiz goes beneath the surface.

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