Both fish-oil pills and krill-oil supplements supply the healthful omega-3 fatty acids DHA and EPA. But there are differences. Krill oil comes from small crustaceans, not fatty fish, and typically ...

Krill oil contains omega-3 fatty acids that lower cholesterol and offer potential heart health benefits. Krill oil, made from shrimp-like crustaceans, is also a source of astaxanthin, an ...

All this light is bioluminescence—visible light made by living creatures. Rare on land, bioluminescent organisms are common in the oceans, particularly in the upper 3,000 feet. This is a world ...

Initially, there was a large increase in krill, shortly followed by a leap in anchovy abundance. By comparison, blue and fin whale song rose primarily during the years where krill was more plentiful.

In the world of bioluminescence, it’s common for organisms to get luciferin—the small molecule needed to make light—from their diet. Scientists have hypothesized that bioluminescent fish make their ...

The bountiful creatures sequester carbon and are a vital food source for marine predators, but their future is uncertain Gabe Castro-Root A single Antarctic krill is about the size of your pinky ...