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Necora puber , also known as the velvet swimming crab, may not be as soft as the name implies. The crab's red eyes and aggressive nature have resulted in a second nickname, devil's crab . As if it...
The over 1,000 species of ribbon worms ( Nemertea ) are mostly found in marine environments (like the Hubrechtia found in a mud flat, in the photo). These worms have both a mouth and an anus (unlike...
Hardy head silversides ( Atherinomorus lacunosus ) are abundant fish in shallow water seagrass meadows throughout the Indo-Pacific that often form shoals. They feed primarily on zooplankton and small...
The sun sets over marshland near Ocean City, N.J.
The 2010 Deepwater Horizon oil spill brought the world's attention to the Gulf of Mexico and raised awareness of the region's chronic loss of wetlands as well as the massive dead zone caused by...
Around 100 million years ago, grass from land adapted to live and reproduce while submerged in seawater—the modern-day seagrasses. This sea invasion by land plants happened four separate times,...
A parent Magellanic penguin ( Spheniscus magellanicus ) sits with its big chick. Magellanic penguins live in South America, breeding in colonies along the coasts of Chile, Argentina and the Falkland...
“The largest land migration of any animal on Earth, as many as 120 million crabs carpet the island in red as they move from the rain forest to the coast.” -- Nature's Best photographer, Stephen...
Johnson's seagrass is the lone ocean plant species listed under the Endangered Species Act. Its flowing green stalks play an important role in coastal ecosystems where they act as nursery grounds for...
What can students do to help the ocean? It turns out, a lot! These students are among dozens from the U.S. and Mexico who are developing action plans on ocean and climate-related issues in their...
An American crocodile ( Crocodylus acutus ) resting on a bed of seagrass . These medium-sized crocodiles are most commonly found in mangrove -lined estuaries and saltwater lagoons between the...
The grasses and animals living in marshes help to filter water and stabilize shorelines, along with providing habitat for a variety of mammals, fish, shellfish and amphibians and a haven for...
The blue lined octopus may be small, growing to at most 15 cm, but it can be deadly: its venom can cause breathing failure in humans as well as other animals. Turtles can accidentally consume the...
In 1989, the Exxon Valdez oil tanker ran aground in Alaska’s Prince William Sound, spilling 11 million gallons of crude oil into the water and onto the beaches of the remote ecosystem. Richard Carson...
Seagrasses don't just provide shelter for free-swimming animals, but also are a habitat for non-moving organisms, such as this sea anemone. Sessile animals attached to blades are called epibionts,...
Two years ago last week, on April 20, 2010, an explosion on the oil-drilling rig Deepwater Horizon caused the largest marine oil spill in history , gushing nearly 5 million barrels of crude oil over...
Jellyfish and comb jellies are gelatinous animals that drift through the ocean's water column around the world. They are both beautiful—the jellyfish with their pulsating bells and long, trailing...
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