Archaeologists have unearthed the rock art which proves that hunter-gatherers of children may have participated in some sort of prehistoric pre-school.
The researchers found that 13,000 years ago, the prehistoric caves of art created by children through their parents.
A conference on the Archaeology of Childhood, University of Cambridge, from today, reveal the latest research on the art made by children as young as three of each of the most famous caves decorated prehistoric France.
Breathtaking designs mammoths, rhinoceroses and horses were found in a five-kilometer "Hundred Mammoth" Rouffignac cave.
Experts recently developed a method for determining the age and sex of those behind the drawings, with one of the most prolific artists is a little girl of five prehistoric.
Some children's drawings are in the walls, which means there may be helped under the watchful eye of an adult.
Also evident are thousands of lines - a simple form of art or decoration known as finger grooves - made by people running their hands into soft surfaces on walls and roofs of many galleries and passages that make up the complex .
Archaeologist Jess Cooney said, "furrows made by the children are in all rooms through the caves, including those who are good 45 minutes walk from the entrance - for now, we could not find anywhere that adults childless striatum.
"Some children are high groove walls and ceilings, so they have even considered making them, or someone is sitting on his shoulders.
"We saw the signs for children aged between three and seven years - and we were able to identify four separate children meet for themselves.
"Children are more prolific than furrows was about five - and we're pretty sure that child was a girl.
"It 'interesting that the four children who know at least two of the girls.
"A cave is so rich in furrows made by the children that suggests it was a special space for them, but if you want to play or ritual is impossible to say."
Archaeologists knew that the children had produced some of the finger grooves in 2006.
Field conducted earlier this year by Leslie Van Gelder Cooney and Walden University, USA, shows how young they were.
Although it is impossible to date precisely the images inside the cave of Rouffignac - a network created by the river systems - it's likely that at least 13,000 years.
The grooves also raise questions about the age of identity - whether children were seen as now - and the apparent gender.
Finger grooves is also reflected in the caves in France, Spain, New Guinea and Australia.
Cooney said: "We do not know why people the facts. We can make assumptions like initiation rituals, training of any kind, or just something to do on a rainy day.
"In addition to the meanderings of single lines, there are grooves in animals and shapes that seem to be very difficult contours of faces, almost like cartoon appearance."
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