A lot of people notice the dog first and the predator second. That is not surprising. Dogs are constantly sorting scent, movement, sound, and small changes in their surroundings long before we pick up ...

Wild black-tailed prairie dogs use alarm calls to warn one another of predators, and some grassland birds are listening in. Photo credit: Andrew Dreelin, Smithsonian’s National Zoo and Conservation ...

Add Yahoo as a preferred source to see more of our stories on Google. If you're getting a livestock guardian dog, it's because you need one. Livestock can't really protect themselves: a pack of ...