Here is some of the hideous handiwork of April's Vivisector of the Month, Janet Neisewander of Arizona State University, who has been conducting wasteful and cruel addiction experiments on animals since 1984.

Using nearly $3 million in taxpayer money, Neisewander gets rats hooked on drugs like morphine, cocaine, and nicotine—sometimes after obliterating parts of the rats' brains with acid.

In these pictures, the rats have nicotine pumped directly into their jugular veins through tubes implanted in their heads. Later, they'll be killed and decapitated and have their brains removed.

How You Can Help Animals Killed in Nicotine Experiments

Thanks to studies in humans, we already know that smoking cigarettes can cause disease in nearly every organ of the human body. Please tell the National Institutes of Health to stop funding nicotine experiments on animals and use tax money for prevention, education, and human-based research instead.

It's time once again for the not-so-coveted Vivisector of the Month award. Of course, all vivisectors deserve the "prize" for their mad science, but we've narrowed the field to two particularly nasty candidates. We're asking you to vote for the person you would most like to see in a stockade getting beaned in the head with fruit.

Mark Lowell is a faculty member at the University of Michigan (UM) who seems to have forgotten that when he went through medical school he swore an oath to do no harm. Lowell directs a Survival Flight course for nurses; in the course, cats and pigs are tormented even though superior human simulators are used to teach the same skills in other courses at UM. Cats have hard tubes repeatedly forced down their windpipes for intubation training, and many of them are killed. Pigs have holes cut into their limbs, throats, and chests and are stabbed with needles in their bones and the tissue surrounding their hearts. PETA, students at UM, the campus newspaper, the student government, and even UM alum Iggy Pop are vigorously urging Lowell to shut down this nasty operation.

In the other corner, weighing in at "cold and callous," is Bradley Greger. This peach of a person is one of the experimenters we've been telling you about at the University of Utah (the U) who buys cats from the North Utah Valley Animal Shelter and subjects them to cruel experiments before killing them. Greger also drills holes into monkeys' and cats' skulls and implants electrodes into their brains. He screws titanium pins into the monkeys' skulls and attaches an aluminum head-restraint device to immobilize the animals in chairs for up to eight hours per day for brain experiments.

You can use our form to e-mail the University of Michigan and the University of Utah and tell them that you support modern, humane science—not cruel animal experiments.

So who will it be: Mark "Lower Than Low" Lowell or Bradley "The Butcher" Greger? Get your moldy oranges ready, aim, and fire.

Written by Michelle Sherrow

David Gozal
louisville / CC

It's time once again for my favorite PETA Files feature: our Vivisector of the Month contest. Each and every month, I read up on two of our nation's most vile vivisectors and let you, our dear readers, decide who is the worst by voting.

Let me begin by recognizing Marina Picciotto, whose primate addiction studies and mouse torture won her the undesirable title of Most Vile Vivisector last month. Her competitor was much-derided Allyson Bennett. Congrats, Marina—I'm certain Yale and all of New Haven are glad to have you!

This month, we have another two truly bizarre candidates … just see for yourself.

David Gozal of the Kosair Children's Hospital Research Institute in Louisville has a bit of a problem. He is fascinated by erections—mouse erections, to be exact. He passes his days in the lab getting up close and very personal with little boy-mice, studying their erections and even severing their spinal cords so that they cannot move while experimenters observe their penises.

In his most recent study, "Erectile Dysfunction in a Murine [Mouse] Model of Sleep Apnea," which was funded in part by the federal government, Gozal measured the number of erections and ejaculations in dozens of mice after placing them in a chamber to deprive them of oxygen. Some mice were also given tadalafil, an erectile dysfunction drug. They were then killed by puncturing their hearts with a needle, and their testicles and penises were cut out of their bodies for examination. Gozal concluded that oxygen deprivation makes it more difficult to get an erection and that tadalafil, which is already prescribed (as “Cialis”) for humans with erectile dysfunction, works in mice.

Experiments on pigs

Daniel Traber of the University of Texas Medical Branch Department of Anesthesiology has made a living for almost three decades by burning animals' skin off. In a recent experiment, he either torched mice with a Bunsen burner until more than 40 percent of their bodies was charred or forced them to inhale smoke. A few select mice got the full treatment—they were both burned and forced to inhale smoke. Some died during the experiment, and survivors were subsequently killed.

In another study, Traber heated an aluminum bar to nearly 400 degrees with a Bunsen burner and roasted the skin of live pigs on it for 30 seconds, creating a series of deep burns that covered 15 percent of their bodies. In order to repair the deliberately injured animals, Traber and colleagues then removed skin from the pigs' legs to graft over the areas that had been burned off. After living through all this torture, the pigs were killed. Again, this is only his most recent work—Traber has been burning, mutilating, and killing sheep for years.

Who should win? The Children's Hospital Vivisector or the Bunsen Burninator? As always, let me help you decide by posing a question: Would you rather be molested, stabbed in the heart, and have your genitals torn out, or would you rather be roasted alive over a Bunsen burner, forced to inhale the smell of your burning flesh, and then killed?

It's a burning question, isn't it?

Written by Sean Conner