After more than a year of pressure from PETA, the American Association for Cancer Research (AACR) has finally retracted a study by animal experimenter Nagendra Ningaraj, who deliberately falsified the results of deadly experiments on mice while he was at Vanderbilt University.

According to an investigation by the federal Office of Research Integrity, Ningaraj gave mice brain tumors, injected them with Minoxidil (yes, the hair-regrowth chemical in Rogaine!), and then killed the mice and dissected their brains. When the results weren't what he had hoped for, he mislabeled images of mice brains and misrepresented results from other experiments before presenting his fraudulent data at an annual meeting of the AACR. 

This isn't the first time that PETA has succeeded in ensuring that animal experimenters who lie about their data are held accountable. Puppy mutilator Gerardo Paez fabricated data when his federal grant–funded eye experiments didn't yield the results that he wanted. PETA asked the Association for Research in Vision and Ophthalmology to retract Paez's so-called "findings," and it did.

There you have it, Ningaraj—winners never cheat and cheaters never win.

Written by Michelle Sherrow

Gerardo L. Paez, a former postdoctoral fellow at the University of Pennsylvania (UPenn) School of Veterinary Medicine, spent years using taxpayer money to breed puppies to have a gene that causes progressive retinal atrophy, a degenerative eye disease that culminates in blindness. During one study, 3-week-old beagle puppies were killed after they had their eyes cut out and dissected. As if that weren't awful enough, according to an investigation by the federal government's Office of Research Integrity, when the results weren't what Paez had hoped for, he simply fabricated them.

Here's a little-known fact about government grants: They're refundable. At least they are if you break the rules. That's why PETA is urging the National Eye Institute (NEI) to demand that UPenn return the money that was used for the experiments in which serial puppy-torturer Paez intentionally fabricated data. Paez later presented the bogus findings at two annual meetings of the Association for Research in Vision and Ophthalmology. Obviously, that's a big no-no—and it's grounds for the NEI to demand a refund for a portion of the $2 million it laid out for the dog experiments and to prohibit Paez from ever receiving taxpayer money again.

This wouldn't be the first time that grant money had to be returned: Prompted by investigations and complaints from PETA, the University of Connecticut Health Center and the University of Washington were ordered to pay back tens of thousands in grant money for abusing monkeys in their laboratories. The feds have also ordered the University of Michigan to pay back a whopping $1.4 million that was used for animal experiments that violated the law.

It just goes to show that crime doesn't always pay—sometimes it pays back.

Written by Alisa Mullins