Trees with ‘crown shyness’ avoid touching each other – and they make some nice-looking patterns in the process.
Forget navigating by the stars: next time you find yourself lost in the bush without a compass, grab yourself a cow.
We interviewed the now outgoing ‘planetary protection officer’ back in autumn. Read our profile of one of the strangest jobs on the planet here.
You don’t need to be an archaeologist to solve Stonehenge’s mysteries – you just need to build this tiny wooden model.