How Did the Dinosaur Extinction Shape Ants’ Sense of Smell?

The Dinosaur Catastrophe: The Beginning of a New Era

About 66 million years ago, a giant asteroid struck Earth, causing the extinction of the dinosaurs and three-quarters of all life forms on the planet. Yet what looked like a devastating end quietly paved the way for new champions to emerge on Earth’s stage, chief among them ants, which succeeded in conquering the planet thanks to radical and sudden shifts in their genetic makeup.

Genetic Leaps: The Secret of Hidden Superiority

Recent scientific studies have revealed that the survivors of this catastrophe underwent unconventional mutations. The changes were not solely the result of slow natural evolution; genetic elements known as “jumping genes” also contributed. These mobile pieces of DNA moved within the genome, triggering sudden mutations that coincided with the rise and spread of major ant groups around the world.

Sense of Smell: Ants’ Weapon for Control

This sudden genetic activity played a pivotal role in developing one of ants’ greatest capabilities: their extraordinary sense of smell. By improving their olfactory receptors, ants were able to communicate with striking effectiveness, organize colonies with precision, track food sources, and seize the environmental opportunities left behind by dead dinosaurs, ensuring their total dominance.

By: Hany Sallam

Source: ScienceDaily

Published by Hany Sallam

Hany Sallam, Founder and Editor-in-Chief of Scientific Magazine Ahram
An independent Arabic science magazine operating since 2008, dedicated to simplifying science, technology, space, natural phenomena and scientific stories for Arabic readers. The magazine includes sections such as “Zodiac Group” and “Stories and Tales”, alongside science topics that combine knowledge with a spirit of discovery. It operates independently and is not affiliated with Al-Ahram Press Foundation or any governmental body.