We are placed in the genus of Homo, which is Latin for man - Homo sapiens: supposedly wise men. I sometimes think - wonder - whether we really are wise men.

What makes us human depends on what place on our evolutionary path we're talking about. If you go back six million years ago, what makes us human is that we were walking upright. That's all. If you go to 2.6 million years ago, it's the fact that we're designing and making stone tools.

This was the most important discovery I had ever made in my life. It was a discovery which has irrevocably changed my whole life's direction. It immediately elevated me to the status of one of the world's leading anthropologists.

In our case, finding a Lucy is unique. No one will ever find another Lucy. You can't order one from a biological supply house. It's a unique discovery, a unique specimen.

I've always wanted, notionally, to be a mother. And I was certain I would be, because everyone I know, gay or straight, married or single, rich or not so much, who truly wants to have a child figures out a way, some way, to have one - whether through adoption, fostering, surrogacy, fertility, accident, or persistence.

The heavy hand of government and its rules are causing family businesses to shutter their doors.

I had really specific ideas of what kind of mom I was going to be and what kind of things I was going to provide for my child - even down to the organic, wooden toys Birdie was going to be allowed to chew on. Then cut to my daughter being obsessed with every plastic, 99-cent store toy.

By giving the FDA adequate resources and authority to both prevent outbreaks and intervene once they appear, we can support the administration's efforts to reassure the parents of America that the food they feed their children is the product of the safest system in the world.