image: A stork landing at its nest. This material relates to a paper that appeared in the Jan. 22,2016, issue of Science, published by AAAS. The paper, by A. Flack at Max Planck Institute for Ornithology in Radolfzell, Germany, and colleagues was titled, 'Costs of migratory decisions: A comparison across eight white stork populations.' view more
Credit: [Credit: Julio Blas]