A 40,000-year-old severed wolf's head, preserved by permafrost complete with teeth and fur has been discovered in eastern Siberia.
It has been found on the banks of the Tirekhtyakh River in Yakuti, Siberia of Russia.
The wolf lived during the Pleistocene era or the Ice Age.
Due to global warming and thawing of permafrost more such remains are expected.
Earlier this year, scientists had announced the discovery of liquid blood and urine within the frozen remains of a 42,000-year-old foal, also preserved in permafrost.
An ice age is a long period of reduction in the temperature of the Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers.
Earth is currently in the Quaternary glaciation, known in popular terminology as the Ice Age.