The Melanoides tuberculata.
Research has found plastic in snails in Nigerian rivers -- another sign that the country needs to manage its waste better.
More frequent coastal storms are stressing ecosystems like these North Carolina marshes.
As climate change speeds up tropical storm cycles, rivers and bays have less time to process nutrients and pollutants that wash into them after each event.
Bleached staghorn coral on the Great Barrier Reef. Many species are dependent on corals for food and shelter.
Corals, mangroves and seagrass habitats have been affected by extreme weather events, and some may never recover.
Human-built structures are home to a wide variety of creatures.
When we build marinas, ports, jetties and coastal defences we introduce hard structures that weren’t there before, and which reduce the amount of sunlight hitting the water.
Marine protected areas are geographically distinct regions of the ocean that are given special protection under law.
A new network of 20 sites have been declared as marine protected areas in South Africa.
The San Pedro Mezquital River is the last free-flowing river in Mexico’s western Sierra Madre.
Thousands of hydropower dams are under construction around the world. New research shows that by cutting off sediment flow, these dams can have big ecological effects on far-off bays and deltas.
White sharks’ ability to stay warm in cold water makes them efficient long-range hunters.
Fatal shark bites are very rare. But the stats do suggest that the likelihood of an attack proving fatal is higher in Australia - probably because our waters are home to the "big three" dangerous species.
A glass bottomed boat safari in a Kenyan marine park.
Kenya can explore at least four key actions, based on past commitments and institutional structures, to transform the economic future of its oceans.