Odd things, daily.
A team of scientists have used a robotic harness and chemical stimulation to allow paralyzed rats to walk again.
After severing the spinal cords of 27 rats, neuroscientist Grégoire Courtine and his team injected the rats with a cocktail of chemicals, then used electrical impulses to stimulate nerves. The rats were then trained to use their hind legs with the help of a robotic harness. After several weeks of this physical therapy, the rats regrew nerves to bridge the gap between the damaged area of their spinal cords.