I don't understand - what is this for?

Per :
acrobatic
hopping with locked wheels and motionless cranks:

http://www.youtube.com/watch?v=kTAUQrQVTTk&eurl=

Every time I watch something like that, I come back to the
commonly-made assertion that the difference between human and
chimpanzee genomes is less than two percent.

Even allowing for a lot of "noise/dead" genes.... I have to
wonder how few genes would need patching to make the diff between
being able to do that stuff and stumbling around like the rest of
us.
--
PeteCresswell