From fish to dogs, many robotic versions of animals have been developed in recent years. Now, scientists from the Beijing Institute of Technology have unveiled the latest robotic animal – a robo rat. The four-legged bot, called SQuRo (small-size quadruped robotic rat), can crouch, stand, walk, crawl, and turn just like a real rat, and can even carry a load equal to 91 per cent of its own weight. The team hopes SQuRo could be useful for squeezing through narrow gaps during search and rescue missions. An enormous robotic yak, strong enough to carry up to 352 pounds, and able to sprint along at up to 6mph, has been developed by Chinese scientists. The robot can deal with all sorts of road and weather conditions, according to the Chinese state run People's Daily, which shared a video of the yak on a road.