A high-pitched, staccato whistle rang out across the shore. To Bruce Beehler’s teenage ears, the sound was unfamiliar. It was 1969, and he stood with his mom along the rocky coast of Maine visiting a ...

Up to 64,000 green sea turtles come to this remote island to breed and lay their eggs. But why do they all come here?

The IUCN Red List, which assesses the extinction risk of species, lists over 100 bird species as extinct since 1500. Sadly, ...