Religion played an important role in the evolution of our species. Many people still feel it’s important today. But it can also lead people to make bad decisions. How…
Human intelligence lets us see a big picture of the world, and makes us wonder how to see an even bigger picture. All over the world people have asked the…
If we have survival instincts, why do people commit suicide? Why do people sometimes sacrifice their lives? If we have reproductive instincts, why are some people homosexuals? Why do…
Archeology shows us that 50,000 years ago our ancestors had invented art, religion, music, and all the other patterns of behavior we have today. That means people 50,000 years ago…
Intelligence, for any animal species, starts with brains doing five basic things. All of animal behavior is the results of the interaction of those five mental functions. Everything people…
Our story has led us from philosophy to math to physics to chemistry to biology to the origin of our species and the evolution of our intelligence. The next…
Seven million years ago our ancestors were chimpanzees living in a forest in Africa. Then a drought caused a food shortage, and some of them walked into the grassland looking…
How did we get from single celled organisms to all the diversity of life in the world today? If you focus on how many differences there are between one…
There are a lot of steps in between the evolution of multicellular life and the evolution of the plants and animals as we think about them today. We can fill…
Genes are molecules. Evolution is caused by the replication, variation, and selection of genes. For life to begin on Earth, the geology of the Earth had to start a chemical…