Noted artist Theo Jansen has Strandbeests, animals that walk on soft sandy beaches. they are autonomous walking machines.
some hold compressed air in tubes to power thmselves. Another class of moving machines, though, need to be powered, either by human (and animal, ie draught) muscle, or by engines.
The consequences of this single minded purpose has already had dire consequences in some hill regions, particularly the Himalayan foothills, and the impact on water flows in the country has never been assessed or debated.
see the full post in https://www.azadmaidan.in/t/chalopede-a-class-of-vehicles-on-legs/88
https://metastudio.org/t/creating-a-pedal-vehicle/2190/16 Creating a pedal wheel..