![PETA on Twitter: "Mice and rats are mammals, & they feel pain and fear much like humans do 😢 Why they don't belong in lab experiments: https://t.co/DBVSEnVJk9 https://t.co/ysM3J2bkeW" / Twitter PETA on Twitter: "Mice and rats are mammals, & they feel pain and fear much like humans do 😢 Why they don't belong in lab experiments: https://t.co/DBVSEnVJk9 https://t.co/ysM3J2bkeW" / Twitter](https://pbs.twimg.com/media/C7tkYuYVYAA0p_O.jpg:large)
PETA on Twitter: "Mice and rats are mammals, & they feel pain and fear much like humans do 😢 Why they don't belong in lab experiments: https://t.co/DBVSEnVJk9 https://t.co/ysM3J2bkeW" / Twitter
![The History of the Lab Rat Is Full of Scientific Triumphs and Ethical Quandaries | Science| Smithsonian Magazine The History of the Lab Rat Is Full of Scientific Triumphs and Ethical Quandaries | Science| Smithsonian Magazine](https://th-thumbnailer.cdn-si-edu.com/tAQgnAjs5kH3ueEvHoPcDGdo2Ms=/fit-in/1600x0/filters:focal(1219x1390:1220x1391)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/38/f3/38f322af-0e62-489f-902f-6f50c43fc3ec/istock-1019889322.jpg)
The History of the Lab Rat Is Full of Scientific Triumphs and Ethical Quandaries | Science| Smithsonian Magazine
![PETA on Twitter: "Mice and rats are mammals who feel pain like we do. In labs, they are electroshocked, mutilated, and given diseases. #NotAnExperiment https://t.co/JFOgh13hGX" / Twitter PETA on Twitter: "Mice and rats are mammals who feel pain like we do. In labs, they are electroshocked, mutilated, and given diseases. #NotAnExperiment https://t.co/JFOgh13hGX" / Twitter](https://pbs.twimg.com/media/C37Ga5OUoAAQknh.jpg:large)
PETA on Twitter: "Mice and rats are mammals who feel pain like we do. In labs, they are electroshocked, mutilated, and given diseases. #NotAnExperiment https://t.co/JFOgh13hGX" / Twitter
![It's heartbreaking.' Labs are euthanizing thousands of mice in response to coronavirus pandemic | Science | AAAS It's heartbreaking.' Labs are euthanizing thousands of mice in response to coronavirus pandemic | Science | AAAS](https://www.science.org/do/10.1126/science.abb8633/abs/covid_animal_colonies_280x720.jpg)