Do animals understand death? Do they grieve and mourn for their loss? Do they feel empathy for those who suffer? Yes, is the answer for all these questions.
If you “know” animals you already know this too. And there are many scientific studies that conclude animals can understand death and grieve for their losses. Scientists have known for years that big-brained mammals (i.e. gorillas, chimpanzees etc.) may grieve when a family member or close friend, or even a pet dies. But, now, we know that mourning is found more widely in animals than once science has recognized: it extends to horses, cats, dogs, rabbits, birds, and many more.
Researchers put a robot monkey among a tribe of Gray langurs (also known as Hanuman langurs) in India. The monkeys mistakenly think the robot is yet another langur, and start playing with him. Then, accidentally, one langur drops the robo-baby from a tree, and as the robotic spy monkey lies motionless, all tribe begin to grieve and mourn. An amazing video reminds us that the animals are more similar to the humans than we may think.