Observer: The hedgehog, water vole and hazel dormouse are among a number of British mammals that face becoming seriously endangered, research published today reveals. Climate change and habitat loss have led to a dramatic increase in the number of mammals whose future survival is a cause for concern among conservationists, the study commissioned by the People’s Trust for Endangered Species concludes. The Bechstein’s bat, one of the country’s rarest mammals, has shown a marked decline while the …