- 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.
Nicholas Humphrey, evolutionary psychologist at the London School of Economics, told The Times the discovery opened "an extraordinary window on our past"...
- Two sisters and one son have only ever walked on two hands and two feet, while another daughter and son occasionally walk on two feet.
All five are mentally retarded and have problems with language as a result of a form of underdevelopment of the brain known as cerebellar ataxia.
However Humphrey told the Times their behaviour may be partly the result of their parents tolerating the behaviour in childhood...
— Red Panda, mentally acute quadruped, Light Reading