Panama is a land of geographical contrasts, featuring mountains like Volcán Barú, the highest point in the country, and white ...

The Texas Parks and Wildlife Department says that female New World Screwworm flies are "drawn to the odor of a wound or natural opening on a live, warm-blooded animal." There, just one fly can lay up ...

A multibillion-dollar expansion helped the canal accommodate king-size cargo ships. It might also be fueling ecological upheaval.