What are the natural enemies of Greenland sharks?

Greenland shark, also known as sleeping shark, is one of the largest sharks, famous for its ugly appearance and longevity. This shark can be seen at depths of 1200m in the Arctic and North Atlantic Ocean. This shark has also been found as far south as Argentina and Antarctica. Greenland sleeping shark meat contains a neurotoxin called trimethylamine oxide, so what are the natural enemies of Greenland sharks?

Natural enemies of Greenland sharks

Young Greenland sharks are smaller and larger carnivorous marine creatures can be hunted. But not when they grow to a certain size, killer whales and they don't live at the same depth. Of course, there are humans, fishing nets, as many as thousands of people are entangled to death every year, but they are disgusted by fishermen and thrown back into the sea because of their lack of meat value.

The lifespan of Greenland shark

Greenland sharks are also special! Don't! Yes! Live! How much can you live? Their lifespan is not much, just four or five centuries.

Scientists have carefully studied the lifespan of Greenland sharks, and marine biologist Stevenson once found a Greenland shark spine, hoping to find rings on the bones and calculate their age, but without success.

So he changed his research method and estimated the age of the shark by measuring the carbon 14 of the crystal in the shark's eye.

After measuring and calculating the error, the conclusion is as follows:

Greenland sharks are at least 272 years old and can be more than 500 years old, making it the oldest vertebrate at present. And they don't reach "sexual maturity" until they are at least 156 years old, that is to say, Greenland sharks have just grown up after we humans have lived for several generations.