Mass extinctions can occur without warning -
The most severe mass extinction in Earth's history occurred with almost no early warning signs, according to a new study .....
https://www.nexusnewsfeed.com/article/an...ut-warning
The most severe mass extinction in Earth's history occurred with almost no early warning signs, according to a new study .....
https://www.nexusnewsfeed.com/article/an...ut-warning