The critters in this video are known as "playing possum" or feigning death. When they feel threatened, they will enter a state of shock and become unresponsive, often appearing to be dead. This is an instinctual defense mechanism that helps them avoid predators.
No, not all animals have the ability to faint or play dead. This behavior is most commonly seen in opossums, but some other animals such as certain species of snakes, lizards, and birds may also exhibit similar behaviors.
No, fainting or playing dead is a natural response for these critters and is not harmful to them. In fact, it can help them survive by tricking predators into thinking they are already dead and not worth pursuing.
Yes, these critters are able to control when they faint and for how long. They are able to enter and exit this state of shock at will, making it a useful defense mechanism in dangerous situations.
No, fainting is not the only defense mechanism for these critters. They also have sharp claws and teeth that they can use to defend themselves, as well as the ability to release a foul-smelling odor to deter predators.