
A robotic mule can lift heavy objects. Boston Dynamics currently manufactures it. It was originally fitted with a petrol-powered engine. This makes a lot noise and has been compared to a swarming of angry bees. However, Boston Dynamics has since developed a much quieter version of this mule, called the Spot, which is powered by electricity and hydraulics. The robot can hold around 40 pounds (18 kg) of cargo. The robot is not repairable.
LS3
The LS3 robotic mule has been undergoing platform refinement and combat simulations on military bases in California and Massachusetts. It needs further refinement to ensure its efficiency. It's currently being called "Cujo", after its maker. It has been used in demonstrations and training exercises at the Marine Corps Warfighting Lab.

The LS3 robotic mule features a variety of sensors and laser radar. It's a powerful follower-the-leader machine that can track a dismounted Marine. Marines can also send commands to the robot.
BigDog
The BigDog robotic mule is a four-legged machine currently being developed by Boston Dynamics for the Defense Advanced Research Projects Agency. It can lift hundreds of pounds, and it can even walk on snowy terrain. It can even climb mountains without falling.
The BigDog robotic mule has been in development for several years and was developed in a lab at MIT with funding from DARPA. The BigDog has articulated legs and a wide range of sensors. The robot does NOT require watering. It runs on a gasoline engine and sounds like a giant chainsaw. In the future, it could be equipped with a solar panel.
Pedongi
Pedongi (the robotic mule) was an Indian army animal. Named after a small West Bengal town, the animal was given its name. The Indian Army's animal transport unit had the mule as part of its animal transport unit. This unit used mules in transporting ammunition, store, and casualties from military hospitals.

Pedongi was in the army for over three decades. The Vir Chakra award was given to the mule after he had retired from the army in 1998 for having served the longest time of any mule serving in the Indian army. While the story behind Pedongi may have changed over the years the main story has remained the same. The 1971 conflict in Jammu-Kashmir saw the mule as part of the Army's Animal Transport Convoy. Although the Pakistani soldiers attacked the mules, the infantry unit countered with an offensive.