In the animal kingdom, penises can be spiked, split, corkscrewed—even detachable. They're one of the most diverse structures ...

Social animals live longer, take additional time to mature, and have more extended reproductive periods than solitary animals, according to research from the University of Oxford. Animals living in ...

People have a complicated relationship with other species. Sometimes we treat them as livestock and prey, sometimes we treat them as laboratory experiments, and sometimes we treat them as family ...