Fish farming has been criticised for a lack of sustainability – here's what has been changing and what still remains a challenge.
New research reveals that miniature, brightly coloured fish play an outsized role in the marine food chain in coral reefs.
To ensure overall biodiversity, the intensity and impact of small-scale fisheries' methods needs far more attention.
Californians love their coast and strongly oppose offshore drilling. Will they support converting old oil rigs to artificial reefs – a policy that benefits both marine life and oil companies?
Tiny calcified formations inside fishes' ears can be used to trace a fish's life history – and potentially, how climate change has affected its growth and development.
Some people argue the absence of evidence is not evidence of absence, you just need to keep looking. But there are occasions where finding no evidence is all you can do.
Protecting forests and wetlands, which absorb and store carbon, is one way to slow climate change. Scientists are proposing similar treatment for marine animals that help store carbon in the oceans.
Fish deaths at the lower Darling can happen again. Here's what we can do about it.
For decades, New England students took field trips out into the Long Island Sound. Their data show how quickly the sound is warming, leading to fewer American lobster, rock crab and winter flounder.
As antibiotic resistance increases globally, the heat is on to find new alternatives to treat infections. Chemists can get a head start by looking at compounds produced in nature by fishes' microbes.
The mouse who tidied the shed he lives in fascinated human viewers, but cleanliness isn't a virtue unique to humans.
The pressure in the deepest part of the ocean can be 1,000 times greater than the pressure we experience at sea level – but creatures that live and visit there have some very special features.
Male plainfin midshipman fish take care of their nests and offspring, but climate change is threatening their ability to do so.
Lake Malawi is considered a biodiversity treasure because almost all its species occurs nowhere else on the planet.
Ecosystems can collapse suddenly and totally. Frozen zoos are trying to create archives of genetic material to prevent total extinctions.
A decade of bipartisan research has provided plenty of answers to the problems plaguing the Darling River.
A few decades ago Boston Harbor was one of the nation's dirtiest water bodies. Now, healthier fish in the harbor underscore that a multibillion-dollar cleanup has succeeded.
Algae blooms have killed hundreds of thousands of fish in the last two weeks, but what exactly are they and how do we get them under control?
For the most nutritious and sustainable seafood option, try small ocean fish.
Increase of carbon dioxide in the ocean affects the way fish detect predators, mates or food and could threaten not only individual fish but entire populations.