National Geographic Explorer Paul Salopek tells host Carolyn Beeler about his walk across South Korea's Saemangeum, a tidal flat on the coast of the Yellow Sea. It was once home to all kinds of birds, ...

Imagine creatures that have survived since the time of dinosaurs. Species like the tuatara, sturgeon, crocodile, hagfish, ...

Many remarkable animal species have gone extinct due to human activities, climate change, and habitat destruction. The Spix’s ...

CELINA - Though dinosaurs are the most notable of the prehistoric animals, smaller mammals and fish walked and swam in Ohio, ...