Rare 150-year-old Greenland shark washes up in Ireland

A unique specimen of a Greenland shark, estimated to be around 150 years old, has been found stranded on the coast of Ireland. This marks the first documented occurrence of the species in the region, sparking interest among marine experts. The shark, measuring approximately 2 meters, was discovered on the shores of Finisklin in County Sligo, prompting efforts to preserve and exhibit it in an Irish museum.

Unusual Find Sparks Scientific Interest

Initially reported as a basking shark, the creature’s identity was later confirmed through photographs to be a Greenland shark. The Irish Whale and Dolphin Group (IWDG) described the event as “very rare,” highlighting the species’ status as the longest-living vertebrate, with some individuals surviving over half a millennium. The discovery is significant given the shark’s habitat in Arctic and north Atlantic waters, where it thrives in extreme conditions.

“This is an extraordinary and rare stranding,” said the IWDG. “The shark’s age and size make it a remarkable find for study.”

The Greenland shark, a large predator, typically grows to 4–6 meters in length. Its slow metabolism allows it to survive in freezing, deep-sea environments, relying on scavenging and a highly developed sense of smell to locate prey. Despite being blind, this adaptation aids in hunting, while its powerful suction enables it to capture food from distances up to a meter away.

Sexual Maturity and Preservation Efforts

Reaching sexual maturity at around 150 years, the species has an extended gestation period of 8 to 18 years. The male shark found in Sligo is believed to be on the verge of maturity, as noted by its well-developed claspers. The Natural History Museum of Ireland (NHMI) now holds the specimen, which was recovered from a remote coastal area using specialized tools, including a crane.

“The specimen is being examined to reveal insights into this elusive deep-water species,” stated a NHMI representative. “Tissue samples and key anatomical parts will be preserved for future research and display.”

With the shark’s condition still under assessment, the NHMI aims to showcase it in a museum setting, offering the public a rare opportunity to learn about one of the ocean’s most enigmatic creatures. The event underscores the importance of such findings in expanding knowledge of marine life in unexpected locations.