As glaciers retreat, Greenland seals may lose key feeding hotspots

Phys.org

February 18, 2026

Studying foraging behavior in marine mammals is especially difficult. Unlike terrestrial animals, which can often be directly observed, marine mammals feed underwater and across vast, remote areas, making it challenging to determine where and what they eat. Most diet studies rely on stomach contents of stranded animals, making it impossible to know where or when feeding occurred.