According to their results, published March 20 in Frontiers in Marine Science, it only takes a small amount of penguin guano ... Given the range of predators that regularly feed on krill, ...

At the bottom of the world lies a region as magnificent as it is misunderstood: Antarctica and the Southern Ocean. Harsh, ...

Many of these predators have diets that are more than 90 percent krill at certain times of the year. If krill disappeared, they’d take the bulk of Antarctica’s most charismatic and important ...

One is that the Arctic krill can set their biological clocks using very small changes in light over the 24-hour day — among the lowest that has ever been measured. This study also helped them infer ...

Krill have declined by 80% since 1976, researchers say. The tiny crustaceans are vital for whales and other sea life. Antarctic Food Chain in Peril, Study Finds - Los Angeles Times ...

Antarctic krill is a key species in the Antarctic marine ecosystem: it is an important food source for many species, such as whales, seals and penguins. However, the small crustaceans are ...

Top Antarctic predator can strain small prey from the water with sieve-like teeth. The leopard seal (Hydrurga leptonyx) is one of Antarctica’s top predators. It kills penguins and smaller seals ...

Minke whales are the smallest of the rorqual group of baleen whales, which use a “lunge feeding” strategy to capture large amounts of small prey such as krill. Credit: Duke Marine Robotics and ...