Question: How did the big bang make living things like humans , dinos and dogs

Hannah Grist answered on 16 Jun 2016:

Ooo, that’s a big question!

Of course, the big bang didn’t make these things directly. The big bang is our best guess at what made the universe, when all the building blocks exploded into being. The building blocks included all the basic chemicals that eventually, over a very long time, stuck together to make this planet.

Humans, dinosaurs and dogs (among other animals!) weren’t made by this process. We think that earth was made about 4.5 BILLION years ago. The first life probably arose on earth around 3 billion years ago…a very long time after the Big Bang.

We don’t know for certain how the first life came about, but when it started it was very simple: just single cells floating around in water. Over the next few billion years, those cells evolved, by making more cells that were just a little bit different every time. Over the many many years of evolution, we have ended up with a huge number of different forms of life, from humans to dogs to plants. Not all of them still exist: some, like dinosaurs didn’t make it til now.