Animal rights groups had claimed that the beluga, nicknamed Hvaldimir, had been shot when he was found dead on 1 September. But a forensic examination has concluded "human activity" did not directly lead to the death of the animal, which had died after a stick became lodged in its mouth. Are you familiar with this story?

The pale whale rose to fame after being seen in Norwegian waters five years ago when he was spotted wearing a GoPro camera attached to a harness that read "Equipment of St Petersburg". His mysterious attachments prompted speculation that the curious cetacean could be being exploited to undertake espionage missions. Hvaldimir's name is a pun on the Norwegian word for whale, "hval," and Russian President Vladimir Putin's first name. Before today's survey, have you heard about the purported spy whale nicknamed Hvaldimir?

Hvaldimir first approached Norwegian boats in April 2019 near the island of Ingoya, about 415km (260 miles) from Murmansk, where Russia's Northern Fleet is based. The sighting attracted attention because belugas are rarely seen that far south of the high Arctic. Russia has a history of training marine mammals such as dolphins for military purposes, and the Barents Observer website has identified whale pens near naval bases in the north-west area of Murmansk. Do you feel that marine mammals are being exploited when they are used for military purposes?

Norwegian police opened an investigation after two animal rights groups – One Whale and Noah - filed a complaint into the creature's death. One Whale founder Regina Haug said at the time she had seen "multiple bullet wounds" in the carcass. But an autopsy showed a stick measuring 35cm in length (14in) and 3cm wide was stuck in the whale's mouth, police for the Southwest district said in a statement. Police said Hvaldimir had also sustained some "completely superficial" injuries, adding "there was no evidence suggesting that Hvaldimir was shot". Were you aware of these sentient creatures before this survey?