Hello, and welcome to the bicycles edition of BrainBox. We're going to be looking at what would happen if we all rode bikes. As you've seen, hedgehogs would be a lot happier, but there's a lot more to it than that!

People use all sorts of vehicles to travel round. Cars are the most popular, but motorbikes, vans, lorries, buses and trains are also common ways of getting from A to B.

So how would things change if we all used bikes instead?

Explore BrainBox to find out - try starting in the Environment section.