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Study Reveals Seals Enter Polar Bear Territory for Food

3/26/2026

23 5 Full Breakdown

Summary

Story summary

A University of British Columbia study finds ringed seals enter polar bear territory when food variety is high.
Researchers tracked 26 seals and 39 polar bears in eastern Hudson Bay using GPS devices.
Seals usually avoid active polar bear zones, but they dive deeper and linger longer when diverse fish are available.
The portfolio effect describes this risk–reward balance and informs wildlife management amid changing Arctic habitats.

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Story summary

A University of British Columbia study finds ringed seals enter polar bear territory when food variety is high.
Researchers tracked 26 seals and 39 polar bears in eastern Hudson Bay using GPS devices.
Seals usually avoid active polar bear zones, but they dive deeper and linger longer when diverse fish are available.
The portfolio effect describes this risk–reward balance and informs wildlife management amid changing Arctic habitats.