>Animals frequently create food caches (hiding spots for valuables they can later access when safe or normal food supplies are no longer available). Even though you may supply all the food your dog may want, it is difficult to break a natural, instinctual behavior. —Dr. Ciribassi >When dogs bury bones, they’re making an instinctual deposit to protect a future meal or prized possession. Thousands of years ago, scavenging dogs weren’t certain where or when their next meal would be. If they scored a big find, they’d hide leftovers for leaner times. Burying food kept it dark and cool, an early version of refrigeration. —Dr. Ward