There’s an assumption among cyclists that riding a bike is as green as a gardener’s thumb. And it’s true, to an extent. Environmentally speaking, bikes are significantly more sustainable ...

Cycling is a sustainable form of transport, but that doesn't automatically mean all cyclists have 'done their bit'. We asked ultra-distance cyclist and sustainability expert Dr Ian Walker how ...

ATP hydrolysis releases the energy required for myosin to do its job. AF: actin filament; MF myosin filament. Modified from Goody (2003).