Birthday picnics are great times to get out in the open air with friends and family. You can play ball, run around, and do all kinds of fun stuff – like play with this T-Rex that’s just shown up! Hey T-Rex! How much fun is this! A T-Rex has bounded into play so us kids can run around and SMACK –wait, what? Looks like one little girl got so carried away that she punched the T-Rex right where it really hurts – and BOOM! Down goes an entire T-Rex, first to his knees and secondly to the entire floor. Hysterical!
So how did dinosaurs really go extinct? Let’s go back in time, shall we? The Earth itself was created around 4.5 billion years ago and life itself first appeared around a billion years later in the form of single-celled organisms. After quite a long time where evolution did its thing, an entire species rose up called, loosely, Dinosaurs. They were around for millions of years – much, much longer than humans have been around – but around sixty-five million years ago, they all went extinct. So what was the cosmic punch to the dinosaurs’ figurative (and literal) crotch? Well, it’s still a bit of a mystery as 1) no one today was around 65 million years ago and 2) as this was still before YouTube, there aren’t any videos. So scientists have to use what clues they can to form a picture. Even that in and of itself is stunning – to think we can even put together a small picture of life sixty five million years ago is mind-blowing. But that’s science for you!
Something happened though, and many species died out completely including the last of the non-avian dinosaurs on land, the massive mosasaurs and plesiosaurs in the oceans, and the pterosaurs in the sky. Plankton took a massive hit as did the last of the hard-shelled ammonites and tons of vegetation. Basically over half of the world’s species said goodbye. But not everything did – mammals (our ancestors) survived along with birds and crocodiles and salamanders. What happened?
Most scientists believe in two theories; one was an asteroid or comet hitting the Earth and the second theory is that there were loads of volcanoes suddenly erupting. Either theory points to the same conclusion; global warming (climate change) the likes of which had not been seen for millions of years that destroyed the skies and atmosphere and wrecked the food chain. It was not a pretty picture and the world was rent asunder for many thousands of years that followed.
And if you’re wondering how scientists could figure that out, look no further than geology (the study of rocks). There is a layer of rocks the world over that dates to this period that shows a sudden surge in iridium – a metal that is rare on Earth but is plentiful in meteorites.
What funny things have you seen kids do? Upload videos of them HERE! And don’t forget to watch the amazing video below!