For the first time, tiny bits of plastic have been found in the body tissue of Pacific walruses, lodged in the animals’ muscles, blubber and livers. The findings, from a University of Alaska Fairbanks ...

Pinnipeds, colloquially known as seals, are a widely distributed and diverse clade of fin-footed, semiaquatic marine mammals. They comprise the extant families Odobenidae (whose only living member is ...