Life on our planet has been shaped over an immense span of time. About 4 billion years ago, Earth began to show signs of the conditions that allowed the first cells, and eventually living organisms, to take hold and populate the planet.
Many…
Life on our planet has been shaped over an immense span of time. About 4 billion years ago, Earth began to show signs of the conditions that allowed the first cells, and eventually living organisms, to take hold and populate the planet.
Many…