Fossils show humans coexisted with giant sloths and mastodons for thousands of years. Evidence includes modified sloth bones ...

The study found that unlike other vertebrates where competition generally suppresses speciation after ecological niches are ...

Contrary to Cope's Rule, today's animals, including polar bears, are shrinking due to climate change and human impacts.

Empty promises by global experts and the continued exploitation of resources have resulted in alarming projections.