Tiny migrating animals' pee shapes ocean chemistry
Tiny migrating animals' pee shapes ocean chemistry

The largest migration on the planet is the movement of small animals from the surface of the open ocean, where they feed on plants under the cover of darkness, to the sunless depths to hide from predators during the day, says a study.

Sea life `facing greater risk of large-scale extinctions`

A team of the world’s leading marine scientists has warned that life in the world’s oceans faces far greater change and risk of large-scale extinctions today than at any previous time in human history.

Counting sea life, sometimes little things are big

If the Census Bureau thinks it has its hands full counting Americans, imagine what scientists are up against in trying to tally every living thing in the ocean, including microbes so small they seem invisible.