Scientists have discovered a record-breaking number of fossilized dinosaur footprints and swim tracks in a national park in central Bolivia.
The tracksite sits along what was once an ancient coastline, with ripple marks extending alongside the…

Scientists have discovered a record-breaking number of fossilized dinosaur footprints and swim tracks in a national park in central Bolivia.
The tracksite sits along what was once an ancient coastline, with ripple marks extending alongside the…