A new study of a migratory songbird shows that individuals with average-sized white tail spots—a trait that is critical to successful foraging—live longer than individuals with more extreme amounts of white in the tail. ⌘ Read more
A new study of a migratory songbird shows that individuals with average-sized white tail spots—a trait that is critical to successful foraging—live longer than individuals with more extreme amounts of white in the tail. ⌘ Read more