image: An adult female hummingbird (Archilochus alexanderi) watches for predators from her nest. This material relates to a paper that appeared in the Sept. 4 2015, issue of Science, published by AAAS. The paper, by H.F. Greeney at Yanayacu Biological Station & Center for Creative Studies in Cosanga, Ecuador, and colleagues was titled, "Trait-mediated trophic cascade creates enemy-free space for nesting hummingbirds." view more
Credit: [Credit: Photo: Harold F. Greeney, Yanayacu Biological Station]