Throughout the animal kingdom, there are animals that form bonds that last a lifetime, showing loyalty and partnership that can be surprising to people. From birds to mammals, these creatures stick ...

The feeling of existential loss was long thought to be uniquely human. But studies of coyotes, cockatoos and other creatures ...

Add Yahoo as a preferred source to see more of our stories on Google. Each Arctic wolf pack has a dominant female and male, who bond for life. You might expect that it would be more practical to keep ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers split populations of red flour beetles, Tribolium castaneum, into two groups and studied them for 156 generations (15 ...

Generally, intra- and intersexual interactions have been considered qualitatively different processes. However, same-sex ...