a) the first bipedal human ancestor
b) the human ancestor who existed for the longest time as a species, nearly 2 million years
c) the first human ancestor to leave Africa
d) both (b) and (c)
on bikes!? I'm in the process of designing a 4 wheeled mountain bike - or as i call it, a Quadcycle, for my A Level Product Design Major Project. I am confident it will work, it will need a fair amount of suspension but what other factors will bear thinking about? It will need gears too... Any...