By Sara Amundson and Kitty Block
The world is moving toward a future dominated by sophisticated methods that use human cells, tissues and organs, 3D printing, robotics, computer models and other technologies to create approaches to testing and research that do not rely on animals. These methods are often faster, less expensive and more effective than the outdated animal experiments currently in use. Despite this, millions of guinea pigs, rabbits, dogs, cats, primates, mice, rats and other animals still suffer in laboratories worldwide.