How Mammals Survived the Fifth Mass Extinction

CGI rendering of ancient Loxolophus mammal taken from the PBS NOVA special, Rise of the Mammals. In this recreation, Loxolophus scavenges for food in the palm dominated forests found within the first 300,000 years after the dinosaur extinction. (HHMI Tangled Bank Studios)

Fossil Site Reveals How Mammals Thrived After the Death of the Dinosaurs

by Riley Black /

In central Colorado, at a place called Corral Bluffs, there lies an unusual graveyard. The ranks of the dead aren’t filled with people, but animals that lived 66 million years ago. Preserved in hardened concretions of stone lie the remains of turtles, crocodiles, and most of all, mammals that lived in this place during the first million years after the terrible impact that triggered the extinction of the dinosaurs. These animals form a part of our own evolutionary narrative—the story of how mammals went from scurrying around the feet of larger creatures to dominating the continents of the world, evolving into a variety of unique beings, including ourselves.

Mammals are not recent additions to the world that came after the time of the dinosaurs. The oldest mammals go back much further in time, and contrary to the standard story of shrew-like critters kept in check by monstrous reptiles, mammals thrived during Mesozoic era. The asteroid impact that felled the “terrible lizards” was also a portentous event for the mammals that had already been plying their own success for tens of millions of years.

The mammalian story is a complicated one.

Read more:


We See The World From All Sides and Want YOU To Be Fully Informed
In fact, intentional disinformation is a disgraceful scourge in media today. So to assuage any possible errant incorrect information posted herein, we strongly encourage you to seek corroboration from other non-VT sources before forming an educated opinion.

About VT - Policies & Disclosures - Comment Policy
Due to the nature of uncensored content posted by VT's fully independent international writers, VT cannot guarantee absolute validity. All content is owned by the author exclusively. Expressed opinions are NOT necessarily the views of VT, other authors, affiliates, advertisers, sponsors, partners, or technicians. Some content may be satirical in nature. All images are the full responsibility of the article author and NOT VT.