When Brynn Devine and Laura Wheeland headed up to the Canadian Arctic for some routine underwater ecosystem surveying, they didn't know what they were going to find.

Hailing from the Memorial University of Newfoundland, the researchers were working with the Arctic Fishery Alliance to deploy underwater cameras into the open ocean. Maybe they would find some shrimp or sea snails during the survey. Or, maybe they would find some rarely seen Greenland sharks.

Using squid as bait, they were able to capture footage of the latter. Their findings were published in late January in the journal Scientific Reports.

A deep-ocean drop camera is a digital camera enclosed in a protective, water-tight sphere. Attached to