I'm not saying that it's the aliens doing this, but it's the aliens...

Pinging noises.  Coming from the Arctic seafloor.  Scaring animals away.  People are worried.

Using their coolest airplanes, the Canucks investigate the strange emanations. 

Canadian CP-140 Aurora takes to the air.

In recent weeks there have been reports of pinging noises detected around Fury and Hecla Strait in Canada’s northeastern Nunavut Territory. Locals say that the noises may be scaring off wildlife, and that they are not audible to the human ear but have been heard using listening devices. Concerns over the issue have led to a slew of possible explanations — everything from the presence of Russian submarines to aliens from deep space to conservationist sabotage.

These reports of strange pinging noises are not just a legend or urban myth; the subject has garnered so much attention that the government representative for the area, Paul Quassa, recently told his legislative colleagues that: “The sound that has been heard in the area seems to be emitted from the seabed and underwater… Our constituents as well as hunters and boaters have reported that the area in question is almost devoid of sea mammals.

The closest settlement is the little town of Igloolik (really?  Igloolik?)

Man, if I lived there I'd get the animals and children in at dark, and then lock and load.  Who knows what might crawl out of the dark, angry surf - hungry and looking for fresh meat?

That's one ugly SOB!

 Department of National Defense spokesman Evan Koronewski responded publicly to the request stating: “The Department of National Defence has been informed of the strange noises emanating in the Fury and Hecla Strait area, and the Canadian Armed Forces are taking the appropriate steps to actively investigate the situation.” 

As for the pings, they could be a localized anomaly that some recording devices pick up under certain conditions — and there is nothing to say that they could not be caused by military equipment in the area. Some manner of sonar system could have been left on the seafloor in the area for a period of time to monitor surface or subsurface traffic. It is also possible that such a device was set there for a period of time, picked up and then possibly returned to the location at a later date, or not at all. Or by hungry, hostile aliens.

What about the possibility that Russian subs are prowling in the area? Once again, it may be possible; and Russia has taken a very high interest in the arctic as of late, with the US following suit. Fury and Hecla Strait may also be emerging as an increasingly strategic shipping funnel. For the better part of the 20th century it was regularly covered in ice, but the strait is increasingly navigable as climate change accelerates. Could this key artery in the Northwest Passage be an upcoming hotspot in the new Cold War?

Watch out, Russians!  If those aliens catch you, you'll be turned into alien borsch before you can say, "Nyet, Komrade!"