Humans are unique among life on this planet, and much remains a mystery as to how we evolved. What steps came first? Why did we evolve this way and not that direction? Why are we the only human species left? What other paths might we have gone down in our evolution?
First humans: Homo sapiens & early human migration (article) | Khan Academy
Stars, failed stars, and stellar remnants pass through our Solar System multiple times every million years. Both modern humans and Neanderthals were likely around to see this event. By the time our planet was four billion years old, the rise of large plants and animals was just beginning. Complexity exploded around that time , as the combination of multicellularity, sexual reproduction, and other genetic advances brought about the Cambrian explosion.
What Was It Like When The First Humans Arose On Earth?
While our ancestors have been around for about six million years, the modern form of humans only evolved about , years ago. Civilization as we know it is only about 6, years old, and industrialization started in the earnest only in the s. The effects of humans on Earth cannot be understated. Every year, we fell forests and destroy other natural areas, driving species into smaller areas or into endangerment, because of our need to build more housing to contain our growing population. The first tangible link to humanity started around six million years ago with a primate group called Ardipithecus, according to the Smithsonian Institution.
This is an article from Curious Kids , a new series for children. All questions are welcome — serious, weird or wacky! What an awesome question, Maeve!