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A submersible explores the deep reefs off of Curacao in the Caribbean.
Article

A New Ocean Zone Described with the Help of a Submersible

Beneath vibrant coral reefs, but above the lightless depths of the sea, lies the...
June 2018
two mangrove trees in the crashing waves
overview

Mangroves

Mangroves are survivors. With their roots submerged in water, mangrove trees thrive...
April 2018
Seagrasses are flowering plants that can form dense underwater meadows and are an important shallow water habitat.
overview

Seagrass and Seagrass Beds

Seagrasses are found in shallow salty and brackish waters in many parts of the...
April 2018
Hawaiian monk seals are among the wildlife found within the Papahānaumokuākea World Heritage Site.
slideshow

Backbone of Biodiversity at Risk

The International Union for the Conservation of Nature (IUCN) maintains the...
Thu, 10/28/2010 - 19:01
An Australian Giant Cuttlefish (Sepia apama) crosses a seagrass bed.
Photo

Cuttlefish in Seagrass Bed

Squids, octopuses and cuttlefish, such as this Australian Giant Cuttlefish (Sepia...
Shark Sizes: Whale Shark 46 feet, Basking Shark 33 feet, Great White Shark 23 feet, Megamouth Shark 15 feet, Nurse Shark 13 feet, Mako Shark 8 feet, Blacktip Reef Shark 6.5 feet, Bonnethead Shark 3.4 feet, Dwaf Lantern Shark 6 inches
Photo

What is the Biggest Shark? A Chart Shows the Diversity of Shark Sizes

Sharks come in all sizes. The largest is the whale shark, which has been known to...
map of the 13 marine protected areas in the United States, that comprise the National Marine Sanctuary system
Photo

Marine Sanctuary Map

The United States has a network of protected areas in the waters off our coasts....
These Smithsonian field stations enable scientists worldwide to conduct long-term studies on mangrove ecosystems.
Photo

Description of Smithsonian Field Stations

These Smithsonian field stations enable scientists worldwide to conduct long-term...
An underwater photo of sharks
Photo

Blacktip Sharks by Enric Sala

Enric Sala has spent much of his career looking for the ocean's "time machines" --...
A whale shark swims with a diver off the coast of East Africa.
Personal Perspectives

The Big Five of the Ocean: Exploring the Waters of East Africa

When we think "Africa," we think of the "Big Five"—lions, elephants, leopards,...
November 2012
Intense volcanic CO2 vents in Ili Ili Bua Bua, Normanby Island, Papua New Guinea.
slideshow

Will Coral Reefs Survive Acidification?

Nestled among the beautiful coral reefs of Papua New Guinea (PNG) is a place that...
Thu, 08/02/2012 - 15:34
A map of NOAA's 13 marine protected areas
Photo

National Marine Sanctuaries Map

The United States has a network of protected areas in the waters off our coasts....

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