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On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
Overview

Sea Level Rise

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a deep sea jellyfish
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The Deep Sea

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A Mesozoic Ocean scene
Overview

Ocean Through Time

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Great White Sharks breach to hunt -- with split-second timing they grab their prey in one swift snatch. Follow the whole breaching action in this slideshow.
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Great White Shark

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two mangrove trees in the crashing waves
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Mangroves

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An assortment of microbe illustrations seen by Leeuwenhoek under the microscope.
Timeline

Milestones In Marine Microbiology

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