COIMBATORE, India — To better understand Equatorial Guinea’s tropical birds, ornithologists Luke L. Powell and Patricia Rodrigues scan the ground rather than the trees. They are searching for nests of ...

Fire ants are using floodwaters to form floating rafts and spreading across storm-battered Australia, posing a serious threat as one of the world’s most invasive species. The Invasive Species Council ...

We have all been in that situation: The moving boxes are large and heavy, but we are determined to carry them all in one trip, even if that means we can't see where we're going. In the tropics, some ...

Scientists at the Smithsonian Tropical Research Institute (STRI) in Panama discovered that carrying oversized loads limits ...