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Photo of a mountain of billiard balls made from ivory.
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Ivory Billiard Balls

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A white crabeater seal resting on an iceberg.
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Crabeater Seal

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A close-up photo of the seeds on the plant Phragmites australis.
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Phragmites australis, seeds

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The long barbel on the chin of this dragonfish has a glowing tip that may attract prey.
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Scaly Dragonfish

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This family tree shows how the ancestors of whales moved gradually from land to sea.
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The Whale Family Tree

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Millions of sharks are caught each year for their dorsal fins, which are prized for shark fin soup. Top predators like sharks are important to maintaining biodiversity, and their removal can have ripple effects through an ecosystem.
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Finned Sharks in South Africa

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A diagram of a shark's six highly refined senses: smell, hearing, touch, taste, sight, and electromagnetism
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Shark Senses

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The Amazon River carries all the rainwater that lands in the Amazon rainforest, covering some 2.1 million square miles, into the ocean. And with it, it carries vital nutrients like phosphorus, nitrogen and silicon.
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Where the Amazon Meets the Ocean

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