“The discovery of a Turkish family that walks on all fours could aid research into the evolution of humans.
Researchers believe the five brothers and sisters, who can walk naturally only on all fours, may provide new information on how humans evolved from four-legged hominids to walk upright.” (Yahoo! News)
I am not sure about the relevance to evolutionary research. The family has a hereditary cerebellar ataxia which makes normal balance impossible. In effect, they represent not where humans are coming from but, with the right mutations impairing brain function, where we’are going to…
