Scientists in Germany have discovered a 17 million-year-old hamster nest they claim is the oldest ever found.The researchers from the University of Bonn found the fossilised nest complete with nuts and other bits of food near a surface mining area near Garzweiler.
Palaeontologist Carole Gee, who was among the research team, said around 1,200 nuts had been gathered and were lining the walls and corridors of the nest in preparation for the animal's winter hibernation.
Ms Gee added the fruit came from an unusual type of tree that is now only found along the North American Pacific coastline and in East Asia, and is related to the south European chestnut tree.
"The construction of the nest and the way in which the nuts have been stored means it was definitely built by a rodent, most probably a large hamster, or perhaps a squirrel," said Gee.
Stemming from the Miocene Epoch, that was characterised by the development of grasses and mammals, the scientists did not find the remains of the nest's inhabitant.
During that period the climate was much warmer and Germany was also home to crocodiles, apes and palm trees.