Masses of shrimp and krill may play a huge role in mixing oceans
The swimmers’ turbulence could be powerful enough to stir nutrients up from the deep
![swimming brine shrimp](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/04/041818_CG_krill_feat.jpg?fit=860%2C460&ssl=1)
MIXING IT UP One swimming brine shrimp generates small-scale turbulence (time lapse of suspended particles in green). But large numbers of the animals together may create currents that stir oceans.
Isabel Houghton