Learn how fish in the Democratic Republic of the Congo scale a near-vertical waterfall using microscopic hooks.

Freshwater trout migrations typically span just a few hundred yards and tens of miles. They’re not covering the distance that their anadromous relatives do, but they, too, will seek out new water for ...

Caption: An octopus cyanea hunting with a blacktip grouper on one side and a gold-saddle goatfish (‘blue goatfish’) on the other. An octopus patrols a shallow reef, searching for food–and it’s not ...

Climate change is reshaping fish habitats. Some fish are winners, others are losing out. Subscribe to our newsletter for the latest sci-tech news updates. Fish already face plenty of pressure from ...

When you think about climate change in our oceans, you may picture coral bleaching, melting sea ice, or extreme weather events. But beneath the ocean's surface, another quiet shift is underway.

Sometimes less is more. Researchers accurately modeled dynamic fish schooling by incorporating the tendency of fish to focus on a single visual target instead of the whole school, as well as other ...