A team of paleontologists led by National Geographic Explorer Paul Sereno uncovered a trove of dinosaur fossils in the Sahara ...

Hippos ahead.” The warning comes from the lead canoe. Hippos are dangerous — highly territorial and fiercely protective of their young. They are capable of capsizing boats and inflicting serious ...

Combu Island is already warmer and drier than 40 years ago, leading to declining yields in açaí crops. The Guamá River ...