If humans had a similar body ratio to the northern giant mouse lemur, their testicles would be the size of grapefruits.
New research painted a more accurate picture of the megafauna that spread widely around the Americas before they went extinct.
Previously believed to be plant or fungi, these giant organisms may have been a now-extinct fourth type of life.
Prototaxites fossils continue to divide scientists. These 400-million-year-old structures may belong to a completely extinct ...
Researchers reveal Prototaxites, a giant Devonian fossil, was not a fungus or plant but a unique extinct lineage.