Tag: extinction
Mass Extinctions of Land-Dwelling Animals Occur n 27-million-year cycle
Mass extinctions of land-dwelling animals, including amphibians, reptiles, mammals, and birds, follow a cycle of about 27 million years, coinciding with previously reported mass extinctions of ocean life.
How a Greenhouse Catastrophe Killed Almost All Life
Earth's history knows catastrophes which are unimaginable for humans. For example, around 66 million years ago an asteroid impact marked the end of the dinosaur era.
Disproportionate Extinction of South American Mammals When Americas Collided
When the Isthmus of Panama rose from the sea to connect North and South America millions of years ago, mammals could cross the bridge in both directions.
Asteroid Impact, not Volcanoes, Made the Earth Uninhabitable for Dinosaurs
Modelling of the Chicxulub asteroid impact 66 million years ago shows it created a world largely unsuitable for dinosaurs to live in.
Giant mass extinction may have been quicker than previously thought
The largest mass extinction in the history of animal life occurred some 252 million years ago.