All sharks are cold-blooded, but this particular species truly thrives in a frigid environment. Greenland sharks prefer to stay in water ranging from -1 to 10°C (30.2 to 50°F), and they migrate to the coldest part of the water each season. Indeed, Greenland sharks are the only known shark species that can tolerate Arctic conditions all year long.
Shark baby and friend now discovering how shoes work.
[Image Description: A digital drawing of a young mermaid and a shark with human legs. The shark wears a pair of shorts printed with stars and is watching in open-mouthed delight as the mermaid slips a shoe with a star on it onto their right foot. The mermaid has her hair in twin buns, and she is grinning, too. There is a pile of mismatched shoes near her, and a small cave behind her. The mermaid and shark are colored flat white against a blue background. /end ID]
Rare footage of a Greenland Shark (Somniosus microcephalus)
Greenland Sharks are the longest lived vertebrate, with lifespans of 400+ years, and are the largest arctic fish. The majority of Greenland Sharks are blind due to parasitic copepods that attach themselves to the eye. They are generalist scavengers, eating carcasses of animals that have fallen to the seafloor. They are rarely seen by humans due to their deep habitat.