500 Year Old Greenland Shark! #didyouknow #randomlyreal

The Greenland shark (Somniosus microcephalus) is one of the most mysterious and long-lived vertebrates on Earth. Found in the deep, cold waters of the North Atlantic and Arctic Oceans, this slow-moving shark can reach lengths of up to 23 feet (7 meters) and weigh over 2,000 pounds (900 kg). Remarkably, Greenland sharks have an estimated lifespan of at least 272 years, with some individuals believed to be around 400–500 years old, making them the longest-living vertebrates known to science. They grow extremely slowly, at a rate of about 1 cm per year, and reach sexual maturity at around 150 years old. Despite their sluggish nature, Greenland sharks are efficient scavengers and predators. Their diet consists of fish, squid, and even large marine mammals like seals, and they have been found with reindeer and polar bear remains in their stomachs, suggesting they scavenge carcasses as well. Their flesh is toxic to humans due to the presence of trimethylamine oxide (TMAO), which can cause intoxication if consumed without proper preparation. These sharks thrive at depths of up to 7,200 feet (2,200 meters), where they navigate their icy environment with a slow but steady movement. Although Greenland sharks have few natural predators, they face threats from overfishing and accidental bycatch, leading to concerns about their conservation status. Currently listed as Near Threatened, these ancient giants remain one of the least understood species of shark, with scientists still uncovering secrets about their biology and behavior. Their extraordinary lifespan and unique adaptations make them one of the most intriguing creatures in the ocean.