Meet Lee Mingwei, master of impermanence, whose latest work, Guernica in Sand, goes on show this month at Hong Kong's M+ ...

As far back as 9,400 years ago, hunter-gatherers in what is now Brazil created dozens of stunning rock-art designs next to the fossilized footprints of dinosaurs, a new study finds. Researchers ...

The rocks feature fossilized footprints with dozens of petroglyphs, also known as rock carvings, next to each other. They date back about 140 million years ago to the Lower Cretaceous period.