Footprints left by a prehistoric mother and her toddler dodging sabre-toothed cats and wolves have been unearthed in the US.
The trackway, the longest set of fossil human prints ever found, stretches for almost a mile – and dates back 13,000 years.
It tells the remarkable story of the pair’s journey as they made their way across treacherous mudflats with hungry giant predators on their tail.
An analysis found the woman was moving at a rapid pace – intermittently carrying and putting down a two-year-old child.
British and US scientists say the toddler was “tired and probably cranky” and describe the scene as “the stuff of every parent’s nightmare.”