A massive predator once roamed the Earth, towering over its rivals and casting a long shadow on the ancestors of T. rex. This giant, now known as Ulughbegasaurus, ruled the prehistoric world around 90 ...

The world’s largest rodent is multiplying in — and dividing — one of Argentina’s most exclusive gated communities.

A UC Davis professor's pleasure hike in the High Sierra turned into a new elevation record for California's highest tree, the ...