Reason related to what led to the extinction of dinosaurs remains debatable. Until now, the most acceptable theory states that around sixty six million years ago, an asteroid as wide as 5 miles and moving at a speed of 70,000 miles per hour bumped into the Earth. The dust from this massive collision blocked the sun and in turn causing catastrophic chains of events that led the extinction of dinosaurs along with three-quarters of other species of the planet.
Read MoreVolcanic Eruptions or Asteroid Collision: What really killed the dinosaurs?
