Re: tree-climbing hominid

H. M. Hubey (
11 Oct 1995 20:35:13 -0400 (J. Moore) writes:

>PC> of the infant hominid foot. Either an infant can, with four limbs,
>PC> support its own weight or it cannot. Only when >50% of infant hominids
>PC> can no longer do this, should the species be regarded as bipedal.

If the only choice is between arborealism and bipealism the 50%
cut-off seems like a good one if we are to use bivalent/boolean
thinking and terminology as in "bipedal", "not_bipedal", or
"arboreal", "not_arboreal".


Regards, Mark