Playtime! Mercedes the polar bear gets a playmate

Walker the male polar bear cub, a new companion to Britain's only polar bear, Mercedes, an older female Photograph: Murdo MacLeod Walker and Mercedes get to know each other Photograph: Murdo MacLeod Walker the polar bear, takes a splash Photograph: Murdo MacLeod Walker and Mercedes sound each other out Photograph: Murdo MacLeod Walker and Mercedes indulge in a chase Photograph: Murdo MacLeod Walker the polar bear takes a swim Photograph: Murdo MacLeod Wassup? Walker the polar bear gets tangled in the rushes Photograph: Murdo MacLeod Walker takes flight as Mercedes rejects his invitation to play Photograph: Murdo MacLeod Walker the polar bear takes to the water Photograph: Murdo MacLeod Walker the polar bear dries off Photograph: Murdo MacLeod