Prehistoric etchings found in a cave in France are the work of children as young as three years old, research suggests.

Indigenous protesters in Bolivia resume their long march against plans to build a road through their Amazon homeland.

The secret to social dominance for bank voles appears to be the size of their genitals, according to scientists.

Ozone loss over the Arctic this year was so severe that for the first time it could be called an "ozone hole" like the Antarctic one, scientists report.