Toxic substances called 'forever chemicals' found in otters in UK

Researchers of Cardiff University Otter's Project have found toxic substances called 'forever chemicals' in otters living in freshwater of England and Wales. They said these toxins, perfluoroalkyl and polyfluoroalkyl substances (PFAs), are harmful to humans and animals. Most of them come from wastewater treatment or agricultural waste and signify widespread pollution in UK, they said.