How Many Species Has Humanity Directly Driven to Extinction?
Human activity has caused the confirmed loss of hundreds of species since the 1500s, a rate far exceeding natural background extinction and threatening
December 22, 2025
Species Extinction
The loss of species driven by habitat loss and other pressures.
Major Mass Extinctions Before the Age of Dinosaurs
Major mass extinctions that occurred before dinosaurs reshaped marine and terrestrial life through climate shifts, volcanic activity, and ecosystem feedbacks, leaving lessons for
December 18, 2025
Animals Lost in the K–T Mass Extinction Explained
The K‑T (K‑Pg) mass extinction erased roughly 75% of species, including iconic dinosaurs, marine reptiles, and countless smaller animals, reshaping Earth’s ecosystems and
December 17, 2025
When Will the Sixth Mass Extinction Truly Begin?
The Sixth Mass Extinction is a human‑driven surge in species loss, and scientists estimate it could begin in earnest within decades as extinction
December 16, 2025
What Is Wildlife Extinction—and Can It Be Prevented?
Wildlife extinction is the permanent loss of a species from Earth, driven mainly by human activities, and while the current rate is unprecedented,
December 15, 2025
How Scientists Know Earth Has Had Five Mass Extinctions
Scientists determine that Earth experienced five major mass extinctions by analyzing fossil records, stratigraphic boundaries, and geochemical signatures, which together reveal rapid, planet‑wide
December 14, 2025
