They’re scientists that are exploring. You can’t see the forest for the trees when you’re barreling down a trail at 15-30kmh. You’re going to see a lot more hiking methodically through kilometers of new alien landscape than you would on a bike. If they want more range or speed they can shuttle, transport, or send a drone. When I explore a new city these days, I take a smart device and a wallet wearing my contemporary version space PJs, jeans and a T-shirt; either walking, ubering, or public transporting where I need to go. I’d miss a lot of interesting stuff by biking because my focus would be on biking, and less on the landscape around me.