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A shell placed in seawater with increased acidity slowly dissolves over 45 days.
overview

Ocean Acidification

Ocean acidification is sometimes called “climate change’s equally evil twin,”...
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
Diagram of narwhal anatomy and tusk function
Photo

Narwhal Anatomy

The first known filter feeder is a large shrimp-like creature called Tamisiocaris borealis. The feather-like structures on its head were used to rake plankton from the sea.
Photo

The First Filter Feeder

Today, filter feeders like clams, sponges, krill, baleen whales, fishes, and many...
Deep-sea Copepod Head
Photo

Deep-sea Copepod Gets a Close-up

This female deep-sea copepod (Pontostratiotes sp.) was collected in the...
A healthy and vibrant coral reef in Papua New Guinea.
Photo

A Healthy Coral Reef

Far away from the volcanic CO2 seeps, a healthy coral reef flourishes with a...
A newly hatched leatherback turtle moves in the sand.
Photo

Habitat for Leatherback Turtles

Endangered Pacific leatherback sea turtles now have nearly 42,000 square miles of...
A yellow remotely operated underwater vehicle, or ROV, at the surface of the water.
Photo

An ROV Explores the Baltic Sea

The Hanse Explorer crew used a remotely operated underwater vehicle, or ROV,...
A rendering of an underwater marine scene from the Cambrian Period, featuring an arthropod, annelids, and other animals.
Photo

Cambrian Period (542 – 488 Million Years Ago)

The basic body plans of all modern animals were set during the Cambrian Period, 542...
Auster and colleagues direct a remotely operated vehicle (ROV) dive on the New England Seamounts.
Photo

Scientists Conduct an ROV Dive

Peter Auster and colleagues direct a Remotely Operated Vehicle (ROV) dive on the...
Inside the remotely operated vehicle (ROV) Jason.
Photo

Views from the ROV Jason

Inside the control van for the remotely operated vehicle (ROV) Jason, Dr....
The robotic arm of the Jason, a Remotely Operated Vehicle (ROV), collects several stalks of black coral from the seafloor.
Photo

ROV Collects Black Corals

The robotic arm of the Jason, a Remotely Operated Vehicle (ROV), collects several...

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