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The giant squid’s enormous eyes help it find prey in the dark ocean depths.
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Largest Eye in the World, Giant Squid

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Tuna caught in the Indian Ocean show the huge scale of commercial fishing.
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Tuna Fishing

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In this painting, a giant squid engages in a struggle for survival with a sperm whale.
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Giant Squid vs. Sperm Whale

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Close-up photograph of an arrow squid embryo.
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Squid Embryo

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Squid size comparison chart: Lycoteuthis springeri (10-12cm), Leachia atlantica (up to 12cm), Promachoteuthis sp. (up to 5cm), Batoteuthis scolops (up to 20cm).
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What is the Largest Squid? A Squid Size Comparison Chart

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Sea anemones, brittle stars, and sea urchins make a home on mangrove roots.
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Mangrove Roots Up Close

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Mangrove roots provide an underwater habitat for many marine species.
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Mangrove Roots Above Water

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Brown pelicans (Pelecanus occidentalis) nest in a mangrove in Ecuador’s Galapagos Islands.
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Pelican Nest in Mangroves

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At the Smithsonian Tropical Research Institute in Panama, Dr. Wayne Sousa (right) studies lightning impacts.
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Field Research in Panama

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Marc Frischer from the Skidaway Institute of Oceanography studies bacteria at a Smithsonian field station.
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Investigating Bacteria

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Compare the healthy coral on the left with the bleached coral on the right.
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Bleached Corals, Pacific Ocean

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A coral reef covered by silt and sand in the Western Pacific Ocean.
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Coral Reef Covered by Silt and Sand

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