A series of footprints that were left by early humans around 900,000 years ago have been discovered by a team of scientists led by the British Museum, Natural History Museum and Queen Mary University of London. The footprints left in ancient estuary muds were found at Happisburgh in Norfolk and are direct evidence of the earliest known humans in northern Europe. Find out more about the discovery: http://bit.ly/NHM-YT-Oldest-European-footprints