By Sara Amundson and Kitty Block
The things that make beagles wonderful companion animals are also the things that have led to their extensive use as laboratory test subjects: They are friendly, good-natured and easy to handle. U.S. laboratories use more than 40,000 of these gentle animals in experiments every year. But we are continuing to advocate for a fundamental shift that would result in a steep decline in the number of dogs and other animals in laboratories.