What if the Asteroid didn’t hit the Earth
In a world where an asteroid whizzed past Earth instead of crashing down with the force of 100 million tons of TNT, life could have progressed much differently. Sixty-five million years ago, some of the animals and plants that are common today were just getting started. These include placental mammals and angiosperms, or flowering plants. Insects that rely on flowers, such as bees, were also relatively new. Many of these life forms thrived after the K-T event, and without the mass extinction to clear the way, they may not have found ecological niches to fill. In this scenario, today's world might be full of reptiles and short on mammals -- including people.
Earth was a warm planet for most of the time that dinosaurs lived. After the end of the Cretaceous period, the world got a lot colder and experienced several ice ages. Whether dinosaurs could have survived such a change in climate is debatable.
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source https://www.reddit.com/r/conspiracytheories/comments/ijr1go/what_if_the_asteroid_didnt_hit_the_earth/
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