There are many possible causes of poop that is large, painful, and difficult to pass. Examples include constipation, fecal impaction, and bowel obstruction. Treatment can depend on the cause ...

Here are just a few: Opossums keep predators away with their poo An opossum is smart enough to know he’s no match for a large carnivore, such as a bear. When being chased, the opossum plays dead ...