Microplastics have been found in the guts of every marine mammal examined in a new study of animals washed up on Britain's shores, say scientists.
Researchers from the University of Exeter and Plymouth Marine Laboratory (PML) examined 50 animals from 10 species of dolphins, seals and whales.
They included mammals found dead along Scotland's coast.
Most of the particles - 84% - were synthetic fibres and the rest fragments of food packaging and plastic bottles.