Norbert Wu / Bald Notothen (Pagothenia borchgrevinki) living on grounded iceberg, fish has glycoproteins that acts as antifreeze in blood to keep from freezing, Antarctica

Norbert Wu / Bald Notothen (Pagothenia borchgrevinki) living in iceberg, notothenioid fish has glycoproteins for antifreeze in blood to keep from freezing, silvery color acts as camouflage, Antarctica

Norbert Wu / Bald Notothen (Pagothenia borchgrevinki) on iceberg, notothenioid fish uses antifreeze glycoproteins to keep from freezing in Antarctic water, Antarctica

Norbert Wu / Bald Notothen (Pagothenia borchgrevinki) eggs in hole in grounded iceberg, notothenioid fish has glycoproteins for antifreeze in blood to keep from freezing, Antarctica