Scientists say subtle differences in the colour of seawater will enable them to count tiny - but critically important - ...

"They are tiny, unsung heroes that sustain incredible marine life, but climate ... of kilometres, to Antarctica, to feed on them. They are also the foundation of a healthy ocean - part of a virtuous ...

"They are tiny, unsung heroes that sustain incredible marine life ... Antarctica, to feed on them. They are also the foundation of a healthy ocean - part of a virtuous cycle: Whales eat krill ...

The blue whale is the largest animal on the planet. It consumes enormous quantities of tiny, shrimp-like animals known as ...

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

Researchers found that whale feces contain iron and non-toxic copper, essential nutrients for ocean ecosystems. The study ...