Unearthing the past

If you're a fan of dinosaurs, trilobites, or fossilized shells, then National Fossil Day is the perfect excuse to get your hands dirty. Celebrated on the second Wednesday of October, this day is dedicated to promoting the scientific and educational value of fossils. From towering T. rexes to tiny ammonites, these ancient remains help scientists piece together the puzzle of our planet's history.
© Nature Picture Library/Alamy