Life on Earth began in a way that still boggles the mind. Around 4.5 billion years ago, a chemical process called abiogenesis occurred, where life emerged from non-life. Imagine a hot, watery mix of ...

pt. 1. The age of mankind in prospect. Our place in nature -- Ancestors in the trees -- Footsteps of the earliest ape-men -- Branches on the human tree -- Hunters or scavengers? -- pt. 2. The age of ...