Whale shark found dead near Danish coast

A dead whale shark, measuring approximately 4.7 meters in length, was recovered near Ålbæk in North Jutland, Denmark. The female shark was first sighted alive on August 6, but was found dead near the harbor two days later.

Biologists from the Nordsøen Oceanarium and the Natural History Museum of Denmark conducted a four-hour necropsy to determine the cause of death. Despite the investigation, researchers have not identified a clear cause. The animal was estimated to be between 10 and 15 years old, which is considered young for a species that can live up to 50 years. Findings indicated the shark was healthy and had recently eaten.

Lead biologist Kristina Ydesen noted that the event provides a rare scientific opportunity. Researchers successfully collected samples of dermal denticles—tiny tooth-like structures in the skin—which have not been previously available for this species and may offer insights into how whale sharks move. Other biological materials, including the head, gills, and spine, have been preserved for further study, with plans to use CT scans to analyze the brain and vertebrae.