Tokyo, Nov 11 (PTI) Dinosaurs would still been alive - and humans may have never come into existence - had the asteroid that hit Earth and triggered the mass extinction 66 million years ago, struck some other part of the planet, a study claims. The impact of the asteroid heated organic matter in rocks and ejected it into the atmosphere, forming soot in the stratosphere. Researchers said that the probability of the mass- extinction occurring was only 13 per cent. The site of the asteroid impact, therefore, changed the history of life on Earth. According to the study, soot from hydrocarbon-rich areas caused global cooling of 8-11 degree Celsius and cooling on land of 13-17 degree Celsius.

Source: India Today November 11, 2017 08:15 UTC