Not all humans can be concert pianists. Some humans can’t speak or get out of a wheelchair or remember their daughter’s name anymore. Here we enter into moral and ethical issues.
Evolutionary biologist David Barash is a man on a mission. He wants to make sure that we all know we are only human, and that means we are only animal.
In 2001, French scientist Alain Beauvilain and three Chadian colleagues discovered a fossil cranium in the dunes of the Chadian Sahara Desert.
A bottleneck of two, or a first pair at our origin older than 500,000 years, is possible.
I am intrigued, but to be honest, I don’t quite know what to make of it just yet, and don’t want to jump to any conclusions.