Southern seals sample salty seas

Southern sealsElephant seals are helping scientists study temperature and salinity changes in the Southern Ocean.

Equipped with computerised tags, the seals can reach regions of the sea impenetrable to researchers during the harsh winter months.

The data, collected during the animals’ long dives under Antarctic ice, provide the best ever estimates for the rate of sea-ice formation.

The findings appear in the Proceedings of the National Academy of Sciences.

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