Southern hemisphere faster to recover after killer asteroid, study suggests

Analysis of insect damage to fossil leaves presents new theory as to why southern hemisphere recovered faster from asteroid that killed the dinosaurs

Ecosystems in the southern hemisphere bounced back more than twice as quickly as those in the north after the devastating asteroid impact that annihilated the dinosaurs, research suggests.

A mass extinction was triggered 66 million years ago when a huge extraterrestrial rock crashed into the Earth. It produced the Chicxulub crater off the coast of Mexico as well as wiping out non-avian dinosaurs and a vast array of other species.