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Scientists determine age of marine mammal bones thawed out on Wilczek Land

The remains were first discovered during an expedition in 2025

ARKHANGELSK, August 11. /TASS/. Scientists determined the age of marine mammal bones that thawed out from beneath a glacier on the Wilczek Land Island of the Franz Josef Land Archipelago. They are at least 10,000 years old, Yevgeny Yakovlev, leading the Laverov Federal Research Center for Integrated Arctic Studies' Environmental Radiology Laboratory (the Russian Academy of Sciences' Urals Branch), told TASS.

The remains were first discovered during an expedition in 2025, he added.

"We were able to visit the Wilczek Land Island during the Arctic Floating University expedition back in 2025," he said. "At that time, we collected samples of the skeletal remains and then, at the laboratory, we conducted radiocarbon dating tests. We have managed to date the remains to 11,000 years. Following the 2026 expedition, we will be verifying the age of new finds."

The bones of cetaceans and pinnipeds, which thawed out on the Wilczek Land Island, may be significantly older, the expert continued. During the expedition in 2026, the Arctic Floating University participants continued their study of the skeletal remains. The scientists were searching for new accumulations as they surveyed the sandy terrace that separates the island's northern and southern ice caps. They recorded thirty-nine sites containing remains of various animals, and their age also will be determined further on. The scientists took samples from the remains to study ancient DNA. The research plans also include searching for paleomicrobial genes.

The bones were found approximately one kilometer from the shoreline. "This suggests they could not have been thrown there by waves, much less by wind; since they are too heavy," the Arctic Floating University expedition's leader Aleksandr Saburov said.

About the expedition

The 20th voyage of the Arctic Floating University scientific and educational expedition continued from July 1 to July 22, 2026 on board the Professor Molchanov scientific research vessel. The expedition organizers are: the Lomonosov Northern Arctic Federal University and the Northern Department for Hydrometeorology and Environmental Monitoring (Sevhydromet). The project's official sponsors and partners are: the Russian Federation's Ministry of Science and Higher Education, the Russian Geographical Society, general sponsor - VTB, the Norilsk Nickel Company, and the Floating University Coordination Center based at the Moscow Institute of Physics and Technology (MIPT).