Archaeologists have found the remains of what could be Britain's oldest surviving human brain.
Human brain evolution, from the earliest shrewlike mammals through primates to hominids, is marked by a steady increase in encephalization, or the ratio of brain to body size. The human brain has been estimated to contain 50–100 billion neurons, of which about 10 billion are cortical pyramidal cells. These cells pass signals to each other via around 100 trillion synaptic connections.
According to BBC article:
Brains consist of fatty tissue which microbes in the soil would absorb, so neurologists believe the find could be some kind of fossilised brain.
The skull was found in an area first farmed more than 2,000 years ago.
More tests will now be done to establish what it is actually made of.