Comet explosion may have caused mammoth extinction

Scientists have been debating for a long time about what happened to the mammoths and other big animals that lived during the Ice Age.

A new study suggests that a big comet broke apart and exploded in the sky above North America around 13,000 years ago.

This explosion may have caused a lot of damage and changes that led to the extinction of these animals.

The scientists found tiny pieces of a special kind of quartz at three important archaeological sites.

This quartz is usually made when there is a lot of heat and pressure, like in a big explosion.

The study was published in a scientific journal called PLOS One and was led by a scientist named James Kennett.