Is the world already at war? The death of an animal suspected of espionage suggests that Russia is increasing hostile operations against the West.
Whale shot as global spy wars heat up
Crime scene: Hvaldimir, a beluga whale believed to be a former Russian spy has been found shot dead wearing a harness marked with "Equipment St Petersburg". Glossary
Autopsy - The surgical examination of a corpse to discover the cause of death, taken from the Greek word for 'eyewitness'.
Cold War - A period of diplomatic conflict between blocs led by the USA and the USSR that lasted from 1947 until 1991, when the USSR collapsed.