Krill are small, shrimp-like creatures that swarm in vast numbers and form a major part of the diets of whales, penguins, seabirds, seals and fish. Scientists say warming conditions in recent ...

Scientists track Antarctic krill via satellite to monitor ocean health amid climate change and fishing threats.

A recent theory proposes that whales weren’t just predators in the ocean environment: Nutrients that whales excreted may have provided a key fertilizer to these marine ecosystems. Research led by ...

The team analyzed whale poop for iron, known to be especially limited in the Southern Ocean, as well as copper.

Blue whales eat krill - tiny, shrimp-like crustaceans that live throughout Earth's oceans. The huge whales can eat up to four tonnes of krill every day. Blue whales lunge through large swarms of krill ...

Researchers found that whale feces contain iron and non-toxic copper, essential nutrients for ocean ecosystems. The study suggests that whale populations once played a key role in fertilizing the ...